
Seedling Trays
Grekkon Limited is a large seedling trays supplier in Kenya. Our black PVC seedling trays for sale in Kenya are for propagation of every vegetable, fruit tree or forestry seedlings or cuttings. These nursery trays work with planting media such as coco peat, peat moss or vermiculite. The soil- less media is sanitised from crop pests and diseases. Every tray has anti-UV treatment to prevent rapid degradation by the sun when placed outdoors. Our nursery trays come in a variety of cell numbers, and sizes. The fewer the cells in a tray, the larger the size, and vice versa. The price of nursery trays when paid for is insignificant when put against the immense benefits these trays provide. Grekkon Limited’s seedling trays are re-usable over many seasons of seedlings or cuttings growth.
Seedling Trays Prices In Kenya
Cell Number | Cell Dimensions (L x W x D) | Price |
28 | 75 | |
50 | 75 | |
66 | 75 | |
128 | 75 | |
160 | 75 | |
200 | 75 | |
204 | 75 | |
288 | 75 |
Advantages of using trays for seedlings
- Reduces incidences of damping off caused by overcrowding and non treated soil
- You are assured of good germination compared to soil
- There is much improved root development and reduces incidences of transplanting shock
- Crops grown from germination trays mature faster as they quickly establish once transplanted
- Uniform harvesting as compared to those raised directly in the soil.
- They can easily be transported with zero damage
Steps to plant seeds in trays
- Add the planting media up to about 80% of the cell volume
- Place the seed a single seed at the top of this media
- Do this for all cells in the tray
- Add another layer of the planting media to fill up the small space left. This will cover the seed
- Add water
- Place the planting tray in a warm place, with ample light, and free of pests
- Place a label showing; the crop type, date of planting, expected date of transplanting
Do not stack the trays on top of each other
Grekkon Limited’s nursery trays are used by small, medium, and large scale farmers for high value crops. They are available in all our outlets countrywide. The company agronomy team trains new farmers on ;
- selection by crop type or stage of transplanting
- planting media
- re-use
- placement in the greenhouse, shade net or other shelter
Proper storage of seedling trays after use ensures their longevity. Stacking them together in a sheltered place is most recommended. Clean them in a disinfectant after use, just before storage. This treatment keeps them sanitised and free of any pests or disease causing pathogens
Germination trays for sale;
- Tomato seedling trays
A farmer growing tomato for the greenhouse will use the 200 or 204 cell trays. These tomatoes will be small in size during transplanting to this protected environment. A farmer growing outdoor tomato will use the 128 – 160 hole seedling trays. These tomato seedlings will be bigger and stronger to withstand harsh climatic conditions in the field.
- Onion seedling trays.
Growers doing onions will use the 288 cell seedling trays.
- Different seedling production in trays.
Onion has tiny seedlings which at maturity fit well in small cells. Tomato, peppers, cabbage, and chilies will use larger cells seedling trays.
- Seedlings production in trays.
Apply the coco peat planting media on all cells up to 3/4. Place the tiny seeds individually in each cell, then cover with the coco peat planting media

Germination trays with coco peat ready for planting
Seedling Trays
FAQs
i. What are seedling tray prices?
Our UV-treated PVC seedling trays cost Kes 90 apiece for all cell numbers. These seedlings trays prices in Kenya are retail, and a discount is offered for bulk buyers
ii. What can I use for seed trays?
Vegetable seed germination, fruit tree or forestry seedlings growth, and silkworm growing
iii. How do you use germination trays?
In an era when farmers have graduated to high-value hybrid vegetable seeds;
- germination trays make it possible to account for each seedling, the reason that every seed is placed manually one by one
- this makes it easy to count actual germination and seedling survivals
- the seedlings have less pest and disease infestation because the trays are used with sanitized growing media
- at transplanting, the growing media covers the root system which prevents transplanting shock in the field or greenhouse
- transplanting shock slows down crop growth and delays maturity
iv. When should I transplant my seed trays?
When the crop has been hardened enough to withstand open field, or greenhouse conditions
v. How do you use seed trays?
Add treated planting media in each cell, then sow one seed per cell. Water it to keep it moist till transplanting
vi. How deep should a seed tray be?
Not less than 5cm for vegetable crops, much deeper for tree crops like forestry and fruit
Grekkon Limited’s agronomists guide every farmer during procurement on the most appropriate tray to use.

Low Cost Greenhouses In Kenya
Our low cost greenhouses in Kenya are either wooden or metallic in structure, vented or tunnel in shape. Internally, they will or will not have crop support systems, and the steel will be galvanised or painted with a protective coat
These low cost greenhouse construction in Kenya attributes are explained in detail below:
- Greenhouse size; the larger it, the lower the unit area cost
- Greenhouse material type. Wooden greenhouses are cheaper than steel frame greenhouses, because steel is more costly. However, they have a shorter lifespan

A low cost wooden greenhouse in Kenya by Grekkon Limited
3. Greenhouse design. Tunnel type greenhouses are lessor priced than vented types. The former are for cool highland locations so that they retain heat, while the latter are for hot locations for less build up of heat

Tunnel type greenhouse

A vented type greenhouse structure
4. Greenhouse use. Is it for flowers, vegetables, strawberry, herbs and spices or seedlings production? This influences the infrastructure set up within the greenhouse. Crops that do not require a greenhouse with an internal crop support system such as; strawberry, herbs, and spices have lower greenhouse construction costs
Seedlings production in a greenhouse

Roses production in greenhouse
5. Steel treatment type. To lower the cost of the greenhouse structure, some growers opt for steel painted with an aluminum or zinc coating. This is less costly than the zinc galvanised steel. However, the paint wears out over time and the greenhouse frame is repainted to prevent rust
As the leading greenhouse company in Kenya, we utilise local greenhouse construction techniques. Our low cost greenhouses in Kenya are for such crops as; roses, carnations, tomato, capsicums, strawberry, and assorted herbs and spices
I. Low Cost Greenhouses in Kenya
1. Greenhouse price in Kenya: Tabulation of steel types
Greenhouse Type | ||||
Tunnel Type | Open Ventilated Type | |||
Greenhouse Sizes | 15M x 8M | 290,000 | 330,000 | |
20M x 8M | 300,000 | 340,000 | ||
24M x 8M | 320,000 | 350,000 | ||
30M x 8M | 460,000 | 540,000 | ||
40M x 8M | 575,000 | 655,000 | ||
15M x 16M | 460,000 | 555,000 | ||
24M x 16M | 620,000 | 665,000 | ||
30M x 16M | 900,000 | 990,000 | ||
40M x 16M | 1,100,000 | 1,240,000 |
2. Low cost wooden greenhouse prices
Greenhouse sizes | Tomato Crop Population | Price in KES |
15 x 8 | 600 | KES 155,000 |
24 x 8 | 800 | KES 200,000 |
30 x 8 | 1,200 | KES 250,000 |
30 x 16 | 2,500 | KES 400,000 |
II. How much does it cost to install a greenhouse in Kenya?
Every tabulated greenhouse price in Kenya above by Grekkon Limited covers both the material and labor cost of greenhouse construction or installation
III. How profitable is greenhouse farming in Kenya?
Every low cost greenhouse for sale in Kenya procured for crop production is a significant investment for the farmer. To optimise revenue and ensure profitability, a grower will adhere to the following
1. Conduct a complete soil test. This will guide the farmer on 2 things
- the right crop nutrition regime
- and the suitability of that soil to establish a greenhouse in regards to any existing soil pests and diseases
2.Choose the right seed. Whatever crop you choose to grow, select the best yielding greenhouse varieties
3. Crop type. The value of the final produce according to market preference
4. Right greenhouse structure. This will be determined by the greenhouse location. Is it a vented or tunnel design?
5. Proper greenhouse polythene color and specs. Follow this guideline
- Yellow polythene is for mono color flowers or none fruiting crops which produce well under lower light intensity
- Clear polythene is for bi or multi colored flowers and any fruiting crop which requires higher light intensity for photosynthesis
- It will have UV treatment to last for long, and to block strong UV rays from reaching the crop
- It will be treated for anti-drip qualities. This prevents dew from forming on the paper and dripping on the crop causing disease infection
6. Irrigation management. As an irrigation company, we provide a detailed irrigation regime tailored to the crop type and growth stage
7. Disease and pest management.
- Have a sanitary pouch at the entrance to sanitize feet, and hands
- Limit access to the greenhouse to a few people
- Daily scouting for pests and diseases
- Have a scheduled pest and disease spray program

Dam Liners Prices in Kenya
Dam liners prices in Kenya for irrigation by Grekkon Limited vary annually by raw material cost. These dam liners will be installed on reservoirs, or water tanks. Their purpose is to prevent water loss through absorption by the soil surface.
Our dam liner material is high density UV treated geomembrane. UV treatment is to slow down degradation by the sun during external use. Grekkon Limited’s dam liners for sale in Kenya are categorised according to thickness

A small water reservoir for vegetable irrigation with a 0.5mm dam liner installed by Grekkon Limited in Emabungo area, Vihiga county. Notice the fence around it fo safety reasons
Dam Liner Prices in Kenya
Liner Thickness | Material Cost In Kes | Welding Cost In Kes | Installation Cost In Kes | AMOUNT In Kes |
0.5mm | 220 | 30 | 30 | 280 |
0.75mm | 300 | 30 | 30 | 360 |
1mm | 380 | 30 | 30 | 440 |
Introducing the 1.5mm dam liner for Kes 780/M square all inclusive
Notes
- Welding cost applies when the liner required is wider than 8M
- Installation cost is charged when a Grekkon Limited technician installs the liner
Dam Liners Material Thickness Application
- 0.5mm liners are for smooth surfaces without stones or rocks. It will work on a surface with murram. The life span is 8 to 12 years
- 0.75mm liners are for rough surfaces with some stones or rocks. The lifespan is 15 to 20 years
- 1mm liners are for stony or rocky surfaces. The lifespan is over 25 years
The choice of liner thickness is a factor of the liner size. A liner holding 10,000 cubic is thicker than one holding 500 cubic
Dam Liners Prices In Kenya
Processes Every Grower Should Know
I. How to calculate your dam liner size
- Measure your reservoir length (L), width (W) and depth (D) in meters
- Apply the formula; (L+2D+2) + (W+2D+2). This converts your 3D measurement to 2D
II. Steps to install your dam liner
- Clean up your reservoir floor to remove any debris that will perforate the liner
- Lay your liner at the center on the floor of the reservoir
- Spread it out to cover the entire floor, and the walls
- Make a trench 1M away from the edge of the reservoir, all around it
- The trench measure 30cm/ 1ft deep by 30cm/ 1ft wide
- Tuck your liner in this trench, then cover it with lots of soil
III. How To Weld Dam Liners
- Factory welding. Depending on the dam liner size, weld it whole or partially in the factory. The weight and volume of the welded material must be easily portable on site. The latter factor guides on how much of the dam liner material will be put together in the factory
- Site or field welding. This is done on site at the point of dam liner installation. It is the joining together of the partially welded dam liner pieces from the factory. Site welding is done when the entire dam liner could not be wholly put together in the factory. This is as a result of weight or bulkiness, which limits lifting and transportation of the bulky and heavy material. The weight size of the portable material depends on the thickness of the dam liner. The thicker it is, the less it is
- A wedge welding machine or a heat gun/ heat blower is the equipment that does dam liner welding. A wedge machine is what does it in the factory. The heat gun is highly portable, and so is best for field joinery
Dam liner welding involves melting the liner material under high temperature at the point of joining them. Once melted, the 2 layers are laid one over the other and as they harden, become one unit

Factory wedge welding of a 1mm thick dam liner

Joining 2 dam liner pieces with a heat gun
IV. How to Harvest Water Using Dam Liners
Factors to consider that will affect your dam liners prices in Kenya
a. Land size
The amount of water required for half an acre is less than that needed for 20 acres. The latter will harvest more water to irrigate the greater acreage, and the former will have less water harvested. The bigger the volume of water reserved, the larger the dam liner size
b. Location
The amount of rain fall is different in every climatic zone. Growers in the cool wet highlands have just a few dry months in the year, while farmers in the dry zones have more dry months than wet. In regions where the interval between rains is long, larger reservoirs are built for the same acreage as that in the cool wet location. Again, dry locations have very high water loss through evaporation. In this case, it is advised to set up a shade net over the water reservoir to manage this water loss
c. Ground Elevation
The farm gradient determines the location of the water pan. Some choose to have it at the lowest part so as to capture run-off water. If it is for crop irrigation, this water is either pumped uphill to a tank from where it flows back by gravity to the crop. Or it is pumped directly to the crop from the water reservoir. Others choose to locate the water pan on the highest point of the farm so that the water, through gravity flows out to the crop. In this case, the farmer does not retain run-off rain water from the farm. On a flat terrain, irrigation water is physically pumped out to either a high storage tank for onward gravity flow to the crop. Or directly to the crop

A low reservoir that collects run-off rain water
d. Farming System
The size of the water pan will differ for irrigation, compared with aquaculture or livestock production
e. Crop Type
Some crops are more water demanding such as leafy vegetables, than others such as herbs. Then some crops like onion are densely spaced while others are like avocado are sparsely populated in the farm. This will determine the water requirement
f. Irrigation System
Every irrigation system has it’s own unique water use. Drip irrigation conserves water while overhead irrigation through sprinklers or rain hose kits spends huge water volumes
g. Surface Texture
The surface texture of the water pan determines the dam liner thickness to install. For a smooth surface, a 0.5mm dam liner is ok. Where the surface is stony or rocky, then the 0.75mm or 1mm dam line is better

How To Install Dam Liners In Kenya
What is dam lining?
It is the lining of the floor and walls of a water pan with a geomembrane material. This material is impermeable and holds the water above it for agricultural use
To cover a reservoir with a dam liner is a simple yet complicated task. Proper dam liner installation in Kenya will guarantee good water collection for irrigation and domestic use. It requires proper coordination so as to achieve the intended objective. Before installation, one must learn how to measure a dam liner so as to determine the area of material needed for the water pan or tank. Grekkon Limited is your number one company in supply and installation of dam liners in Kenya
How do you measure a dam liner?
- Measure the length of the water reservoir
- Measure the width of the water reservoir
- Determine the depth from the center-most part of the water pan which is deemed as the deepest part
- Apply this formula (length+2 depth+2 meters) X (width+2 depth+2meters). The additional 2 meters in each set are for tucking the liner. The dam liner tucking distance from the edges is taken as 1M all around te water pan
Steps on How to Install Dam liners in Kenya
Water Pan Excavation
This is the first step and usually takes the longest time. Excavation is manual with handtools, or with a machine. Most common machines for dam excavation are backhoe loaders, bull-dozers and caterpillars. At excavation, the side walls are inclined at an angle to prevent collapse of the dam.
Read Also: How to join dam liners and Quality dam liners in Kenya by Grekkon Limited
Smoothening Of The Water Pan
This is to remove any sharp objects that damage the dam liner. Pour in water on the floor and sides to soften it.
Trench Making
Trenches are dug round the dam where the dam liner will be installed. The size of the trench will depend on the size of the dam and the dam liner thickness. The most popular trench sizes are 1ft deep by 1ft wide and 1.5ft deep by 1.5ft wide.

Observe the trench made around the water pan. it is 1M from the edges of the water pan, and this is where the dam liner will be tucked
How To Install Dam Liners In Kenya
- Place the dam liner in the reservoir. This way, it takes the shape of the reservoir
- The liner must have an allowance for overlap. Bury the overlap in the trench, then cover with soil for a smooth finish. The trench dimensions will be 0.45M to 0.6M deep, and 0.3M wide. Several casual labourers make the process as smooth as possible. Where no trench has been made, support the dam liner with sand/ soil bags to achieve the same result
- Install an inlet and an over flow. The inlet is a pipe from a river, borehole or from the roof gutter section. Dams that trap run off water have a silt trap with several chambers to trap stones, mud and other debris.
How To Weld Dam Liners
- This is done on site at the point of dam liner installation. It is the joining together of the partially welded dam liner pieces from the factory. Site welding is done when the entire dam liner could not be wholly put together in the factory. This is as a result of weight or bulkiness, which limits lifting and transportation of the bulky and heavy material. The weight size of the portable material depends on the thickness of the dam liner. The thicker it is, the less it is
- A wedge welding machine or a heat gun/ heat blower is the equipment that does dam liner welding. A wedge machine is what does it in the factory. The heat gun is highly portable, and so is best for field joinery
Dam liner welding involves melting the liner material under high temperature at the point of joining them. Once melted, the 2 layers are laid one over the other and as they harden, become one unit. The welded joints must be leak free for the dam liner to work effectively in the tank or water pan. Lined water pans are popular as water storage units for agricultural field crops irrigation in a country that has just one or two rainy seasons

Coco Peat Price In Kenya
Grekkon Limited’s coco peat price in Kenya is per kg of dry material. As the largest coco peat supplier in Kenya, we keep the moisture level to the lowest level for greater value. The fiber content varies according to the growers need because we tailor this. Our coco peat for sale in Kenya is available from 5kg bags, and our cost of coco peat in Kenya is as wholesale or retail
Advantages of coco noir
- It is easy to make
- When well treated, it has near zero diseases and pests
- It is easily available
- Seedlings established in, or plants grown hydroponically in coco peat grow 50% faster than in soil. This is because it is highly porous allowing for vigorous root growth and rot air supply
- It has a high water holding capacity
- It is environmentally friendly because it is a 100% natural product
- Coco peat neutralises soil acidity

Coco peat growing medium in a hydroponic unit
Disadvantages of coco noir
- It is a more expensive option than soil
- If not well treated, it can harbor pests and diseases
- Getting the right EC and moisture levels is difficult
- It is rich in sodium and potassium salts
- It requires treatment
How to make coco peat soil
- Collect coconut husks (mature green coloured ones, not the brown dry shells)
- Cut them up to smaller pieces
- Clean them in water to remove dirt and other debris
- Sun dry them
- Run them in the grinding machine
- Sieve the product to separate the coco peat from the fibers. The choice of sieve depends on the amount of fiber needed in the final product
We process our coco peat in Kilifi and Kwale counties, empowering hundreds of coconut farmers who supply our processing plant with raw material. Our production process provides the best coco peat for sale in Kenya. The final material is applied my hundreds of farmers for production of seedlings and mature crop growing. The table below provides details of our final coco peat material after processing
Coco Peat Price In Kenya:
Cost of Coco Peat and Material Specs Tabulation
1kg of coco peat (loose) | Kes 80 |
PH | 6.3 – 6.7 |
Electrical conductivity (EC) | 1.6 – 2.0 |
Expansion ratio | 2.5 – 3 |
Moisture content | <5% |
Compression volume | 28L |
Fiber content* | <3% |
Sand content | <1% |

A 5kg block of treated coco peat is Kes 600
* the fiber content is tailored to the growers need. Seedling nurseries require <3%, while potted plants or a growing crop will do up-to 30%
Our coco peat price is discounted for large volume purchases

High fiber

Low fiber
Coco Peat Price In Kenya
FAQs
I. How do you treat coco peat before planting?
Step 1.
Soak it overnight in water. Unwashed coco peat has high levels of sodium, potassium and chloride which make it highly saline. High salinity = high pH (>7.0). High salinity locks up many nutrients making them unavailable to the crop
Step 2.
Dissolve 2.5g of calcium nitrate for every liter of water. This is arrest excess sodium or potassium chloride salts in it, and to increase nitrogen. Again, plants grown in coco peat tend to become deficient in calcium or magnesium as they grow
Step 3.
Rinse it in running water until the brown coloration disappears
In nurseries, coco peat is input in seedling trays, while in greenhouses, this is in troughs.

Seedlings germinated on low fiber

A crop grown on high fiber coco peat
II. How much does 1kg coco peat expand?
1kg of coco peat expands to 5kgs
III. Can I plant directly in coco peat?
No because it does not have nutrients for the crop. This is only possible under hydroponic growing where nutrients are supplied to the crop often. Coco peat alone is used for germinating seeds
IV. What are the disadvantages of coco peat?
- it is high in potassium
- if not properly sanitised, it will harbour pests and diseases
- it is more costly to germinate wit than soil
- during processing, it is difficult to attain the right pH and moisture content
V. How long can coco peat last?
Coco peat begins to break down after 10 years. It is therefore be reused over 4 years, because it resists accumulation of crop harmful bacteria and fungi
VI. Can we mix coco peat and soil?
Yes, at a ratio of 3 parts of soil to 1 part of coco peat. This is done as a soil amendment measure; to loosen the top soil
VII. Can seeds germinate in coco peat only?
Yes, coco peat is perfect medium for seeds germination. This is because it re-wets very easily

Soil mixing with coco peat. Observe a soil to coco peat ratio of 3:1
VIII. How much water do you put in coco peat only?
Apply water at a ration of 3.5litres for every 5kgs of coco peat
IX. Can I use coco peat only instead of soil?
Yes in hydroponic crop production. Crops under hydroponic production grow 50% faster than they would in soil
X. Which plants grow well in coco peat?
Potted plants, and ornamentals such as ferns, cactus, orchids, bromeliads, anthuriams and others
XI. Do you need to wash coco peat?
Yes to remove excess salts. Clean it in running water until the water is clear
XII. Is growing in coco peat better than in soil?
It is better, but expensive because nutrients and water have to be added frequently. Coco peat has little and few nutrients of its own, and it dries out fast. Hydroponic plants grown with coco peat grow faster, they have higher yields, they enjoy a neutral pH, and their roots extend easily
XIII. How often do you water coco peat?
Every 4 to 5 days
XIV. What is the best fertiliser for coco peat?
Granular NPK fertiliser with a ratio of 2-1-1 is best. Apply both fast and slow nitrogen releasing fertilisers

Pond Liner Calculator
In this pond liner calculator article, we answer the following frequently asked questions
1. How is a dam liner calculated?
The formulae adopted depends the shape of the water pan. The water reservoir’s dam liner is calculated differently for a circular or oval water pan vis a vis that of a square/ rectangular one. Similarly, a square water tank has a different formulae from a circular one. A water pan with slanting edges has a different formulae from that with straight edges. Whether the water reservoir or tank is for irrigation, domestic or industrial application, the formulae is the same
I. Square/ rectangular water reservoir or tank pond liner calculator
a. Square/ rectangular pond liner calculator for straight edges: Total length in meters: (length + 2depth + 2meters). Total width in meters: (width + 2depth +2meters). The additional 2meters on each side are for the overlap which is tucked in a trench for water reservoirs. For tanks, it’ll be 0.5M. Multiplying the total length with the total width gives the pond liner area in meters

Pond liner installation in a water reservoir with straight edges
Tucking is in a trench all around the water pan

How to trench and tuck your pond liner
b. Square/ rectangular pond liner calculator for slanted edges: Total length in meters: (base length + 2slanting depth + 2meters). Total width in meters: (base width + 2slanting depth +2meters). Multiplying the total length with the total width gives the pond liner area in meters
Pond Liner Calculator: Table
Circular Liner | Sloped Sides Liner | Straight Side Liner |
(Circumference*H+0.6M) + (3.14*3.14*r+0.6M) | (SL*2+D+2M)*(SW*2+D+2M) | (L+2D+2M) * (W+2D+2M) |
If your totals include a decimal say 120.3sq, round it up to the nearest whole number, in this case 121M sq. The +0.6M in the ‘circular liner’ and is the overlap. So is the 2M in the straight side liner’
“D” is the maximum depth which is the center-most point of the reservoir
II. Circular pond liner calculator
Diameter + (2height/ depth) + (1meter). The 1meter is the external allowance that goes outside the tank as shown in the image below

A liner in a cylindrical tank
2. How do I calculate how much pond liner I need?
The size of the pond liner is according to the water pan or water tank area. The size of the water pan or tank is by volume, shown as; length by width by depth/ height. The liner size is by area, shown as; length by width. For this conversion, the formulas shown above work
The larger the water pan or tank, the larger the pond liner required

Dam Liner Company In Kenya
Grekkon Limited is the foremost dam liner company in Kenya. From material selection, to welding and installation, our professional teams train growers on all these aspects. It ensures that they make the right choice and why
This is according to the size and nature of their irrigation water reservoirs and tanks. These dam liners in Kenya are UV treated, HDPE geomembrane material in varying thicknesses and weights as tabulated below
Liner Thickness | Liner Weight/ M SQ |
0.5mm | 460g |
0.75mm | 880g |
1mm | 910g |
The UV treatment reduces radiation damage which is high in tropical countries

A roll of 0.75mm dam liner
Dam Liner Prices In Kenya
Our dam liner cost in Kenya is broken down into; material, welding, and installation. Once a grower procures a dam liner, s/he will have it welded if the width exceeds 8M. If the farmer chooses for us to install, then the cost of installation applies.
Liner Thickness | Material Cost (KES) | Welding Cost (KES) | Installation Cost (KES) | AMOUNT (KES) |
0.5mm | 220 | 25 | 25 | 270 |
0.75mm | 300 | 25 | 25 | 350 |
1mm | 380 | 25 | 25 | 430 |
How Are Dam Liners Calculated?
Before determining the dam liner size, one must understand the size of the reservoir or tank. This is by measuring the length, width, and depth/ height (for rectangular or square shaped reservoirs/ tanks). For circular or cylindrical tanks/ reservoirs, measure the diameter, and the depth/ height. The reason this is key is because our dam liner material comes in rolls. To make out the shape of the water pan or tank, the dam liner is cut in large bits from the roll and joined together. This is to create the 2 dimension size of the water reservoir or tank. For example; if the width of the dam liner on the roll is 8M, and the water pan requires a width of 15M. Then 2 pieces, one measuring 8M and another 7M in width from the roll are cut and joined to create the 15M width
How Do I Calculate How Much Dam Liner I Need?
The dam liner calculator is adapted to the shape of the irrigation water reservoir as illustated in the 3 different shapes below
- Sloped sides reservoir
The slope of the dam wall is shown as slanting length (SL) or slanting width (SW) in the dam liner calculator tabulation shown later in this page
2. Cylindrical circular tanks
3. Straight side reservoirs
Pond Liner Calculator: Table
Circular Liner | Sloped Sides Liner | Straight Side Liner |
(Circumference*H+0.6M) + (3.14*3.14*r+0.6M) | (SL*2+D+2M)*(SW*2+D+2M) | (L+2D+2M) * (W+2D+2M) |
If your totals include a decimal say 120.3sq, round it up to the nearest whole number, in this case 121M sq. The +0.6M in the ‘circular liner’ and is the overlap. So is the 2M in the straight side liner’
“D” is the maximum depth which is the center-most point of the reservoir
Dam Liner Calculator
How much overhang should a pond liner have?
An overhang is the extra liner material that holds the main liner in the reservoir or tank. This excess material is held against the external wall of the tank, or tucked in a trench all around the reservoir to support the dam liner in place. It is covered with soil or stones in the trench. Another alternative to trenching is to lay sand bags on it. The weight of the sand bags holds the dam liner in place
After excavation, it is necessary to compress the mould of soil roundabout the water pan before making a trench
See below
Dam Liner Installation
Our dam liner rolls are 8M wide. So for any width beyond this, the additional size has to be welded on. Welding is carried out fully in the ware house for small liners, and partly in the field for large liners. This is to reduce bulkiness during transportation to site
When installing a dam liner in a reservoir, trench round about the reservoir. This anchor trench is where the liner will be tucked for support
The video below shows a farmer in Nandi county recounting the benefits he has received 2 years later after having his dam liner installed by Grekkon Limited
How To Weld Dam Liners
- Factory welding. Depending on the dam liner size, weld it whole or partially in the factory. The weight and volume of the welded material must be easily portable on site. The latter factor guides on how much of the dam liner material will be put together in the factory
- Site or field welding. This is done on site at the point of dam liner installation. It is the joining together of the partially welded dam liner pieces from the factory. Site welding is done when the entire dam liner could not be wholly put together in the factory. This is as a result of weight or bulkiness, which limits lifting and transportation of the bulky and heavy material. The weight size of the portable material depends on the thickness of the dam liner. The thicker it is, the less it is
- A wedge welding machine or a heat gun/ heat blower is the equipment that does dam liner welding. A wedge machine is what does it in the factory. The heat gun is highly portable, and so is best for field joinery
Dam liner welding involves melting the liner material under high temperature at the point of joining them. Once melted, the 2 layers are laid one over the other and as they harden, become one unit

Factory wedge welding of a 1mm thick dam liner

Joining 2 dam liner pieces with a heat gun
Both equipment run on electric power. In off grid electricity locations, Grekkon Limited provides a generator to power the heat gun or wedge welding machine
Dam Liner Company In Kenya: Summary
Every dam liner size is available from our outlets countrywide. Besides supplying and installing liners, our technical team advises growers on;
- The right size of reservoir for a particular acreage
- How to properly excavate your reservoir
- How to select the right dam liner according to ; the reservoir size, surface texture, and one’s budget

Water Sprinklers
Water sprinklers for sale in Kenya by Grekkon Limited are categorised by size. The sprinkler size determines the place of use, as a result of the unit amount of water it gives. Water sprinklers in Kenya are either plastic or metallic. This affects the price and longevity, but not the water volume.
1. Garden Sprinklers
These have an inlet diameter of 1″, 3/4″ and 1/2″. Garden sprinklers have low water volume, and are for home gardening. This includes; kitchen gardens, small scale farms, lawns, hedges, and flower beds. Their irrigation diameter is 3M to 14M according to inlet size and make.
Examples
1.1. Butterfly sprinklers
1.2. Mega net sprinklers
1.3. Impact sprinklers

Metallic impact sprinklers

Plastic impact sprinklers
1.4. Pop up sprinklers
1.5. Lawn sprinkler
1.6. Sprinkler jet micro sprinkler
Garden Water Sprinklers Prices in Kenya
A commonly asked question; How much does a sprinkler cost in Kenya?
The table below answers this
Type | Inlet Diameter | Max Spray Diameter | Min Head (Pressure Rating) | Max Flow Rate | Price in Kes |
Impact Sprinklers | 1″ | 12M | 10M | 3M3/ Hr | 1,250 |
3/4″ | 7.5M | 10M | 2M3/ Hr | 750 | |
1/2″ | 5M | 10M | 1.5M3/ Hr | 450 | |
Butterfly & Micro Sprinklers | 1/2″ | 3M | 3M | 0.1M3/ Hr | 150 |
Mega net Sprinklers | 3/4″ | 10M | 20M | 0.3M3/ Hr | 250 |
1″ | 14M | 30M | 0.5M3/ Hr | 350 | |
Pop up Sprinklers | 1/2″ | 7M | 20M | 2M3/ Hr | 2,750 |
3/4″ | 14M | 30M | 3M3/ Hr | 3,750 |
2. Rain gun sprinklers
These are larger sprinklers to irrigate small to large acreage of commercial crop. They vary in size and make.
2.1. Flange type rain guns
They are giant rain guns that evacuate large amounts of water, and work under high pressure. They are in large plantations

A flange type rain gun in a large field
2.2. Atom rain gun
2.3. PY type rain gun
2.4. Plastic rain gun
Rain gun price in Kenya
Type | Make | Inlet Diameter | Max Spray Diameter | Min Head (Pressure Rating) | Max Flow Rate | Price in Kes |
Flange | Metallic | 2″ | 60M | 50M | 60M3/ Hr | 65,000 |
Flange | Metallic | 1.5″ | 45M | 40M | 40M3/ Hr | 50,000 |
PY 50 | Metallic | 2.5″ | 40M | 30M | 25M3/ Hr | 19,000 |
PY 40 | Metallic | 2″ | 35M | 30M | 17M3/ Hr | 17,000 |
PY 30 | Metallic | 1.5″ | 30M | 30M | 8M3/ Hr | 15,000 |
Atom/ RM | Metallic | 1.5″ | 30M | 30M | 8M3/ Hr | 17,000 |
Plastic | Plastic | 1.5″ | 30M | 25M | 7M3/ Hr | 5,000 |
Atom/ RM | Metallic | 1″ | 20M | 30M | 6.5M3/ Hr | 6,500 |
Greenhouse Sizes In Kenya
Greenhouse sizes in Kenya range from smal units of 120M sq, to large commercial structures spanning dozens of acreage. The most common greenhouse size in Kenya are tabulated below
Greenhouse Sizes In Kenya
A. Small
Dimensions in meters | Tomato Crop Population | Price in KES |
15 x 8 | 600 | KES 195,000 |
24 x 8 | 800 | KES 275,000 |
30 x 8 | 1,200 | KES 365,000 |
40 x 8 | 1,500 | KES 530,000 |
48 x 8 | 1,600 | KES 600,000 |

2,880M sq of greenhouses contructed for a medium scale farmer in Heni area, nyandarua county. The target crop is herbs and spices
B. Medium
Dimensions in meters | Tomato Crop Population | Price in KES |
24 x 16 | 1,500 – 1,600 | KES 540,000 |
30 x 16 | 2,400 | KES 660,000 |
40 x 16 | 3,000 | KES 990,000 |
C. Large From 800M square. Kes 900 per meter square. We customise our price according to size, and your greenhouse budget
What determines greenhouse sizes in Kenya?
- Land area. The size of the greenhouse will be limited to the amount of land available to develop
- Water availability. The larger the greenhouse, the greater the water use
- Use. A seedlings propagation greenhouse unit in a fram will be smaller than the commercial units where these seedlings establish as crops in the same farm
- Budget. Greenhouse construction is a capital undertaking. The size of the greenhouse unit will be determined by the capital available
Greenhouse Sizes in Kenya
Construction materials
I. UV treated greenhouse polythene with anti drip properties
This is the key material that protects the crop from the elements of weather; sun, wind and rain. It creates the ‘greenhouse effect’, and minimises disease and pest incidences on the crop. It is either clear or yellow in color. Clear greenhouse polythene for fruiting crops, or in ornamentals, bi or multi colors. This is because it allows in more light which these need for photosynthesis, the process that makes food for the plants. Yellow is for vegetative crops, and mono color ornamentals. In mono color ornamentals, it intensifies the color
II. Galvanised steel bars
They provide structural support to the greenhouse, and also to the crop as ‘crop support structures’ for tall indeterminate crops such as; tomato, peppers, and cucumbers
III. UV treated high density insect nets
These nets keep away insect pests. They are for self pollinating (do not require external pollinators such as insects and birds) greenhouse crops
IV. Bird nets
These are only used in greenhouse crops that require insect pollination from bees, butterflies, hornets and many other pollinating insects. They allow in the insects, but keep away bird pests. An example of such a crop is strawberry
V. Profiles
They are screwed onto the galvanised steel bars so that the greenhouse cover is tucked in them
VI. Wiggle wires
Once the greenhouse cover is tucked in the profile, wiggle wires keep it in place so that it is not removed by wind or other physical force. Wiggle wires have a plastic covering to prevent damage to the greenhouse paper the are in direct contact with

Wiggle wires hold in place a clear greenhouse polythene sheet tucked in a profile
VII. Screws
The join the profiles to the galvanised steel structure
VIII. Concrete
This is what supports the galvanised steel structures on the ground and keeps them upright

Humidification through misters in a seedlings propagation greenhouse
Successful greenhouse farmers in Kenya grow both none food and food crops in our metallic greenhouses. Common greenhouse food crops are; tomato, peppers, strawberries, and cucumber. Galvanised steel bars, insect netting, screws, and profiles are our greenhouse construction materials. With labor addition, all now constitute your final greenhouse cost Every Grekkon Limited greenhouse has a drip irrigation system for crop production, or a misting/ fogging system for seedlings propagation. Sprinkler irrigation systems are not installed in greenhouses
Greenhouse Sizes In Kenya
FAQs
1.What is greenhouse farming?
2. What is the most profitable crop to grow in a greenhouse?

A 30M x 8M tunnel type greenhouse by Grekkon Limited in Rimuruti area, Laikipia county. Notice the front sanitary pouch, and side roll up
3. How profitable is greenhouse farming in Kenya?
Greenhouse farming consists of self-pollinating crops such as greenhouse indeterminate tomatoes, peppers, and cucumbers, and also insect-pollinated crops like strawberries. These are high-value crops that require intense attention and protection from pestilences such as; hail, drought, pest, disease, storms, and cold. They are moderately profitable. We design none food metallic greenhouses for flowers such as; roses, carnations, and chrysanthemums, and herbs such as geraniums, mint, basil, rosemary, and lemongrass. These crops are highly profitable and are grown by successful greenhouse farmers in Kenya.
4. How do you build a greenhouse?
Greenhouse farming in cool highland zones will have a tunnel-type greenhouse constructed because it conserves heat, while those in the warm lowlands will have a vented type greenhouse that allows better cooling. The difference between the two greenhouse types is that the vented type has a roof top ventilation. This is created by overlapping one side of the roof above the other (see the wooden greenhouse image below) Our sizes range are small, medium and large

The interior of the tunnel type greenhouse
6.How thick does the plastic need to be for a greenhouse?
It will be 200 to 220 microns. Our greenhouse polythene price in Kenya is Kes 96/MSQ7. What is the best covering for a greenhouse?
8. Are greenhouse tomatoes better than outdoor tomatoes?
Greenhouse tomatoes have less pesticide applied to them because the crop is protected. Greenhouse tomato farming prevents high pests and diseases outbreak. These tomatoes have a lower shelf life than open field tomatoes because their rind is softer than open field tomato. Complete exposure to the sun is what gives open field tomato tougher rind, assuming the same level of nutrition for both. To increase the shelf life of greenhouse tomato, calcium and boron feeding is necessary
9. How well can a small-scale farmer run a greenhouse?
Grekkon Limited has developed manuals to assist small-scale farmers to achieve high yields in their greenhouses. We also conduct crop assessment visits during the first 4 months of production, free of charge. The reason we make it 4 months is because by this time, the crop has been harvetsed severally and the farmer knows all the basics of production

Greenhouse Sizes In Kenya
How profitable is greenhouse farming in Kenya?
How to get high yields in your greenhouse farming
1. Soil test
Conduct a soil test to determine the right fertiliser regime. A soil test will be done in a soil testing laboratory after soil samples are collected from the site.
2. Nutrition
Before making your beds, trench to 2 feet and add manure mixed with soil and ash then do your bed over this trench. This will feed your indeterminate crop for many months, providing consistent productivity
3. Water usage
Drip irrigation is the method of watering your greenhouses. Tomato farming, strawberry farming, pepper farming, herbs farming, cucumber farming, and for every crop in the greenhouse.
4. Crops to grow
Indeterminate vegetable crops like; tomato, cucumber, strawberries herbs, and peppers. This is because the yield over a prolonged period of time, which is key in returning the greenhouse investment
5. Pests and diseases
Greenhouses reduce the incidence of pests and diseases because the crop is under a protective greenhouse cover

Ripe greenhouse tomato fruit

Ripe open field tomato fruits
Greenhouse Sizes In Kenya
Summary
For your greenhouse investment in Kenya, we provide a kit for an additional cost that consists of;
- Seedling trays
- Coco peat
- Fertiliser (planting and topdressing)
- Pesticides; insecticides (long and short PHI), and fungicides (preventive and curative)
- Personal protective equipment
- goggles
- gas mask
- overalls
- gloves
- gumboots)
- A 20-liter knapsack sprayer
This secures your greenhouse budget. Our technical team is at hand to guide growers on the best greenhouse cost and sizes based on; crop type, location, and budget.

Spraying agrochemicals on a young open field tomato crop donning the full PPE kit
One acre rain hose kits
Grekkon Limited’s one acre rain hose kits in Kenya installations are done by the technical team across the country. The number of rain hose pipes installed per acre is determined by the following:

A one acre rain hose irrigation system installed by Grekkon Limited in Makutano area, laikipia county
- the available flow rate, and pumping pressure from the water pump or water source. Where the flow rate and pumping pressure is high, the diameter of reach is broad, so less rain hose pipes are needed
- the diameter of the pipes. Larger diameter rain hose pipes provide more water, over a larger area, so less of them are needed
Cost of one care rain hose kits in Kenya
Diameter size | Flow rate per 100M | Price in KES |
32mm or 1″ | 13 cubic litres per hour | KES 85,000 |
40mm or 1-1/4” | 16 cubic litres per hour | KES 78,000 |
50mm to 1-1/2″ | 22 cubic litres per hour | KES 70,000 |
Rain hose pipes work under high gravity pressure (from 6M or 0.6bar), and with high volume water pumps. The discharge rate of the water pump is from 40 cubic litres per hour. These water pumps are surface solar, electric, petrol or diesel powered
One acre rain hose kits in Kenya
Installation
- Trench where the poly vinyl chloride (PVC) main line will be laid. This is not necessary for the high density polyethylene (HDPE) which are surface pipes. PVC pipes are sub-surface pipes because they have no UV-treatment, and will thus degrade easily under the sun. HDPE pipes have UV treatment and will be surface pipes
- Connect the PVC or (HDPE) main line to the water pump or high tank. This pipe evacuates water from the source to the farm and is the largest in diameter. The larger the pipe diameter, the more the water it delivers. .
- Join the HDPE or PVC sub-main line to the main line. The sub-main line is smaller in diameter, and so carries less water. It is joined to the main line through PVC or HDPE accessories such as; tees, elbows, saddle clamps, adaptors or valve sockets
- Connect the rain pipe to the sub-main line or the main line where a sub-main line does not exist. This is done with a rain hose connector or a saddle clamp
- Spread the rain hose along the length, and close the terminal end with an end cap
- Connect one rain pipe to another with a connector

Rain hose fittings from left to right: end cap, connector, rubber, and ball valve
A drilling tool is the only tool used when installing a rain hose kit. This is to create an opening on the main or sub-main line to insert the rain pipe ball valve
One acre rain hose kits
Components of a rain hose irrigation kit?
1. End-caps. They close the end of the pipe to prevent further water flow 2. Starter off-takes. They connect the rain pipe to the PVC or HDPE main line that supplies water to the rain hose from a water pump or highly elevated water tank 3. Pipe connectors. To connect one rain hose pipe to another 4. Mini valves. To control water flow to the rain hose pipe
The diameter of the pipe are; 25mm, 32mm, 40mm and 50mm. A grower chooses the preferred size based on crop water needs and area of irrigation. For instance, a farmer with 1 acre of the crop will comfortably water with the volume delivered through a 32mm rain hose pipe.
Another grower with 5 acres will better irrigate with a 50mm rain hose pipe. An acre of crop uses 1,000 meters of 25mm, 800 meters of 32mm rain hose pipes, 600M of 40mm pipes, and 400M of 50mm pipes
One acre rain hose kits
Rain hose irrigation system requirements
- The system requires a pressure head of 30M, and above
- When using a water pump to power the rain hose irrigation kit, the discharge rate should be from 45 cubic litres per hour
- The rate of water discharge is determined by the diameter size, and number of pores on the rain pipe. For instance, a rain pipe with 5 holes per cluster discharges less water than the one with 7 holes in a cluster
- It irrigates in opposite directions at a radius of 3M for the 32mm pipe, 5M for the 40mm pipe, and 7M for the 50mm pipe
- The vertical height of this water jet is 1M
One acre rain hose kits
FAQs
a. What is the difference between a rain hose irrigation system and a sprinkler system?
- The technology. The rain pipe irrigation system is designed using nano technology
- The mode of spray. A sprinkler sprays its water in one direction, a rain hose pipe sprays in 3 directions (vertically, horizontally, and diagonally)
- Placement. A sprinkler is placed upright on the surface or sub-surface (for pop up sprinklers). A rain hose is laid on the ground
b. What is the pressure in a rain pipe?
The minimum operating pressure is 30M head / 3 bars
c. What is the spacing for rain hose irrigation?
The distance from one rain pipe to another is from 1.5M depending on the operating pressure, and pipe diameter
Grekkon limited is the largest supplier and installer of rain hose irrigation systems in Kenya, and in the east and central Africa region