How To Install Rain Hose Kits
Grekkon Limited’s manual on how to install rain hose kits in Kenya is an easy to read step by step guide. It details every aspect of rain pipe assembly in the farm to provide understanding to farmers. As the pioneer of rain hose kits in Kenya, we are keen to that farmers receive the full benefit of rain pipe irrigation
What is the price of a rain hose irrigation kit?
| Diameter size | Flow rate per 100M | Price in KES |
| 32mm or 1″ | 13 cubic litres per hour | KES 2,500 |
| 40mm or 1-1/4” | 16 cubic litres per hour | KES 5,800 |
| 50mm to 1-1/2″ | 22 cubic litres per hour | KES 6,800 |
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
A well connected rain hose pipe
How To Install Rain Hose Kits
- 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
How to Install 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
How To Install 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
Rain Hose Versus Drip Irrigation
- Rain pipes irrigate in an overhead fashion, drip lines irrigate to the root zone
- Drip tapes are water efficient, rain hose kits require large water volume
- Rain pipes have a higher pressure requirement than drip pipes
- Drip lines have emitters, while rain hose kits have pores done with nano technology
- The discharge rate for drip lines is 1.2 to 4 litres per hour per emitter, while the rain hose pore’s is from 7 litres per hour per emitter
- The cost of a drip kit installation per acre is from Kes 100,000, while the rain hose is from Kes 75,000
- The rain hose pipe’s minimum diameter is 25mm/ 3/4″, while drip tape’s is 8mm
Advantages Of A Rain Hose
- water saving and cost effective
- It is easy to install, use and maintain
- Ran hose nanotechnology punched holes are less prone to clogging
- It is used in a broad range of crops
- Rain hose pipes are light and easy to move about
- It irrigates uniformly
- It works under both low gravity and high water pump pressure
Rain hose irrigation system is for the following areas and on these crops
- Crop nurseries; vegetables, fruit trees, forestry
- Short vegetable crops (knee-high and below); cabbage, lettuce, broccoli, kales, spinach, collards, broad beans, carrot, strawberry, and others
- Pasture; grass and legumes
When choosing the crop to irrigate using this method, consider its susceptibility to foliage fungal infections predisposed by leaf surface wetness. Tomato, potato, peppers, peas, green beans, and chili easily succumb to foliage fungal infections when overhead or a rain hose system is used for a long time
Pasture irrigation with a rain hose
How To Install 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
Solar Water Pumps For Agriculture
Grekkon Limited’s solar water pumps for agriculture have different specifications in pressure rating (head), flow rate, and the motor size (Megawatts). Our solar water pumps for irrigation in Kenya range from small portable to large immobile units. The choice of a farmer’s solar water pump is a factor of acreage because, the area under irrigation determines the water use Our solar water pumps prices are tailored to the well’s depth, yield and head. These solar pump’s costs range from as low as Kes 37,000 to over Kes 1,500,000. For instance, a farmer with a 6M shallow well yielding 0.5 cubic litres an hour will work with a basic solar water pump. Another grower with a deep well of 280M, and a yield of 15 cubic litres per hour will have a large pump installed
A simple to assemble solar submersible water pump kit for shallow wells
Types Of Solar Water Pumps For Agriculture
1. Submersible water pumps
These are the most common ones with farmers installing them in deep or shallow wells. They are also done in rivers and pools. They work when fully immersed in water. Stainless steel submersible solar water pumps are common in every well. There is a more efficient and affordable plastic version. This is for rivers, pools, and water tanks. It works with the same principle as the stainless steel one
Submersible solar water pumps for agriculture prices
Our solar water pumps prices range from as low as Kes 38,000 for small portable units, to over Kes 2,000,000 for large types. The former have a low head, and low water flow rate. The latter is for very deep wells and with lots of water
A graphic illustration of a stainless steel solar submersible water pump in a well installation
A plastic submersible solar water pump designed for rivers. pools and tanks
To recommend and price your right submersible solar water pump, a test pumping report is required. It will show; the well depth, the dynamic head, the static water level, and the pump placement level is necessary. Where such is lacking, then a float switch attached to the water pump is necessary. It ensures that it only works when submerged in water. The motor is damaged when the water pump runs ‘dry’
2. Surface solar water pumps
These solar surface water pumps work without any external contact with water unlike their submersible type counterparts. They are easily portable unless it’s too large to move about.
A solar surface water pump
3. Direct current (DC) water pumps
These are purely solar water pumps that work under a DC current. They will not require an inverter, unless a farmer chooses to install one. This is to modify it to use an alternating current (AC)
4. Alternating current water pumps
These are purely electric water pumps that work under an AC current. To convert it to a solar water pump, an inverter converts the DC to AC. The DC is from the solar panels
A illustration of a solar water pump inverter showing how it connects the entire system
Submersible solar water pump prices in Kenya
Solar water pump for irrigation prices (submersibles for shallow, low volume wells below 100M)
| Model No | Power (Hp) | Watts | No & Panel Size | Head (M) | Flow rate (liters/ hour) | Price in Kes |
| SP 0.5N | 0.6 | 700 | 300W x 1pc | 40M | 5,800 | 37,120 |
| SP 0.6N | 0.8 | 1,200 | 300W x 2pcs | 60M | 5,800 | 40,215 |
| SP 0.8N | 1.1 | 1,300 | 300W x 3pcs | 70M | 5,800 | 46,400 |
| SP 1.0N | 1.3 | 1,400 | 300W x 3pcs | 80M | 5,800 | 52,600 |
For solar submersible water pumps for deep well below 80M, we provided tailored units based on the test pumping results of the borehole
Solar-powered water pumps FAQs
I. How much is solar water pump in Kenya?
The solar water pump price depends on the features listed above; power rating, head, and flow rate. It can be a low-cost solar water pump that costs Kes 15,000, and or a borehole solar water pump as much as Kes 1,500,000
Solar pump prices are varied according to this
II. How much is a solar panel in Kenya?
Our price is Kes 50 per watt
III. What is a DC water pump?
A direct current water pump is one that uses a direct current from a solar panel or battery to push irrigation water
IV. Do you sell any portable solar water pump in Kenya?
Yes our shallow well solar water pumps are portable
V. Is it a low-volume high-pressure water pump?
Not all. Some of our submersible solar water pumps are high volume high-pressure water pumps. They have a high water flow rate. Most are high volume high-pressure pumps with a high water flow rate
VI. What is the best solar-powered water pump?
It depends on the individual’s use
VII. How does a solar pump work?
Solar energy from the sun is received on the panels. This energy as a direct current is fed to the motor to pump out the water
VIII. Do solar pumps work at night?
No, they don’t, unless powered by an external battery
IX. Which solar pump is the best?
To determine the most appropriate submersible solar water pump for a client, the following information will be provided
- Depth of the well or borehole
- The water level in the well or borehole
- Water requirement or use per day
X. What are the disadvantages of solar water pumping?
- The initial set up cost is expensive
- If placed in an insecure location, the risk of theft is high
- It does not pump at night or when it gets very cloudy
XI. Can I connect a pump directly to a solar panel?
No you cannot because all connections origination from the panel or the pump has to go through the control unit
JD Diesel Water Pumps
JD (Jiang dong) diesel water pumps in Kenya by Grekkon Limited are of varying specifications for agricultural use in irrigation. This specifications are in regards to; the engine power, the head, and the flow rate. Our JD diesel water pumps consist of a diesel engine, and a horizontal single-suction, single-stage, centrifugal water pump. The water pump is made from cast iron
The water pump. It is rated by inlet/ outlet pipe size, head, and flow rate
The engine. It is rated in horsepower (Hp). The higher the HP, the more powerful it is
JD Diesel Water Pumps Characteristics
- high efficiency
- wide performance range
- safe and stable operation
- long service life because the cast iron impeller and volute reduce vibration and wear on the mechanical seal and engine
- convenient installation and maintenance
- can channel hot water, abrasive or corrosive liquids by changing the material of the water pump’s flow-through components, the form of the seal and adding a cooling system
Working Principal
After the start, the impeller rotates rapidly so that the water in the impeller channel flows towards the volute. During this time, a vacuum is formed in the inlet, and water flows from the suction pipe to the pump through the impeller channel
The right most critical terms when identifying the right pump performance is water volume and the lift/ head. Generally, a trade -off occurs between head and flow with an increase in one causing a decrease in the other and vice versa. Head refers to the gains or losses in pressure caused by gravity and friction as flows through the system. The lift is the vertical distance from the water line to the center line of the impeller
The greater the lift and the water volume required, the larger the engine power. For instance, to achieve a flow rate of 80 cubic litres per hour, at a head of 100M, then the engine power must be from 22Hp and above
JD Diesel Water Pumps Prices
| Model | Specs; head, flow rate, outlet size, and horsepower | Price in KES |
| JD | 65M, 38cubic per hour, 2″ and 14Hp | KES 113,000 |
| JD | 65M, 38cubic per hour, 2″ and 16Hp | KES 116,000 |
| JD | 65M, 38cubic per hour, 2″ and 18Hp | KES 129,000 |
| JD | 65M, 38cubic per hour, 2″ and 22Hp | KES 141,000 |
| JD | 100M, 80 cubic per hour, 3″ and 22Hp | KES 148,000 |
| JD | 65M, 38cubic per hour, 2″ and 24Hp | KES 158,000 |
| JD | 100M, 80 cubic per hour, 3″ and 24Hp | KES 165,000 |
| JD | 65M, 38cubic per hour, 2″ and 30Hp | KES 172,000 |
| JD | 100M, 80 cubic per hour, 3″ and 30Hp | KES 180,000 |
Complete units of JD diesel water pumps by Grekkon Limited
When assembling a JD diesel water pump, use the right steel frame gauge to hold the unit. Ensure that the rubber pulleys joining the engine to the water pump have the right tension
Water Pumps In Kenya
Water pumps in Kenya by Grekkon Limited are varied for different purposes. This provides a wide choice to select from for growers according to irrigation use. Below are water pumps by Grekkon Limited
Water pumps in Kenya
Categorisation
1. By displacement
1.1. Centrifugal pumps work through centrifugal force to drive water that enters the impeller. They use the rotational energy from the spinning impeller to produce hydrodynamic energy
1.2. Positive displacement water pumps use a piston, a diaphragm, or a rotating cog or gear to mechanically move a fixed volume of water through the pump chamber
An electric centrifugal water pump
2. By Location
2.1. Surface pumps suck water through an inlet pipe, then pump it out from an outlet pipe. They are set horizontally on dry surface. Theses are; electric surface pumps including booster pumps, solar surface pumps, diesel and petrol generator water pumps
A diesel water pump
2.2. Submersible water pumps work under water in wells. The size and power depends on the well depth, and discharge rate. They are either solar or electric powered
A submersible solar water pump
3. By power output
3.1. Electric motor powered pumps are either electric (AC current), or solar (DC current) water pumps
An electric surface pump
3.2. Generator powered water pumps are either diesel or petrol types. These are available as high pressure, high volume, low pressure and low volume
A petrol water pump
Water Pumps In Kenya
What To Consider When Buying Your Water Pump
1. The head/ pressure rating
This is the vertical pumping distance in meters or bars. The higher it is, the higher the pressure needed, and the more powerful is the engine or motor. Fuel engine (generator) or electric motor power is horse power (Hp), or in Kilowatts (kW) for the latter
2. The flow rate
This is the amount of water pumped evacuated per unit time. It is in litres per minute or per hour. The higher it is, the larger the water pump inlet and outlet size
For agricultural use, PVC or HDPE water pipes are connected to these pumps. The pipes evacuate water to the crops
3. The power rating
The motor or engine size provided in kilowatts (kW) for the former, and in horse power (Hp) for the latter determines the water pump’s efficiency. The larger the flow rate and the discharge, so will the engine or motor be
Water Pump Prices In Kenya
Water pump prices in Kenya for irrigation by Grekkon Limited are determined by;
- Source of power types; solar, electric, diesel, and petrol
- Positioning; surface, or submersible
- Pressure rating; high, medium, and low pressure water pumps
- Flow rate; high volume, and low volume
Water Pump Prices in Kenya Tabulations
1. Solar submersible pump prices
| Model No | Power Hp | Watts | No & Panel Size | Head (M) | Flow rate (liters/ hour) | Price in Kes |
| SP 0.5N | 0.6 | 700 | 300W x 1pc | 40M | 5,800 | 37,120 |
| SP 0.6N | 0.8 | 1,200 | 300W x 2pcs | 60M | 5,800 | 40,215 |
| SP 0.8N | 1.1 | 1,300 | 300W x 3pcs | 70M | 5,800 | 46,400 |
| SP 1.0N | 1.3 | 1,400 | 300W x 3pcs | 80M | 5,800 | 52,600 |
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2. Electric surface pump prices
| Model No | Power Kw-Hp | Head (M) | Flow rate (liters/ min) | Inlet/ Outlet size in Inches | Motor Phase | Price in Kes |
| i. Single impeller centrifugal pumps | ||||||
| CM 32 | 0.75 – 1 | 32 | 120 | 1 | Single | 13,570 |
| CM 35 | 1.1 – 1.5 | 35 | 140 | 1 | Single | 27,142 |
| CM 45 | 1.5 – 2 | 45 | 160 | 1-1/4 / 1 | Single | 33,570 |
| CBM 303/B | 2.2 – 3 | 17.4 | 1,000 | 3 | Single | 67,140 |
| ii. Twin impeller centrifugal pumps | ||||||
| 2CM 25/160A | 2.2 – 3 | 65 | 160 | 1-1/4 / 1 | Single | 75,715 |
| 2C 25/160A | 2.2 – 3 | 65 | 160 | 1-1/4 / 1 | Three | 84,285 |
| 2C 32/210C | 5.5 – 7.5 | 90 | 300 | 1-1/4 | Three | 138,570 |
| iii. Monoblock centrifugal pumps | ||||||
| CS 32-200C | 4 – 5.5 | 40.7 | 600 | 1-1/2 / 1-1/4 | Three | 104,285 |
| CS 32-200B | 5.5 – 7.5 | 55.7 | 600 | 1-1/2 – 1 | Three | 131,430 |
3. Electric submersible pump prices
| Model No | Power Hp | Head (M) | Flow rate (liters/ hour) | Price in Kes |
| DW 1050 | 0.5 | 34 | 3,000 | 18,000 |
| DW 1100 | 1 | 67 | 2,500 | 20,800 |
| DW 1150 | 1.5 | 81 | 3,000 | 27,900 |
| DW 2000 | 2 | 108 | 3,000 | 35,000 |
| SBH 1050 | 0.5 | 54 | 3,000 | 23,000 |
| SBH 1100 | 1 | 95 | 2,500 | 25,000 |
| SBH 1500 | 1.5 | 128 | 4,500 | 36,500 |
| SBH 2000 | 2 | 168 | 4,500 | 43,800 |
| SBH 3000 | 3 | 237 | 4,500 | 56,500 |
| SBH 4000 | 4 | 270 | 4,500 | 70,000 |
| SBH 4000-3 | 4 | 304 | 4,500 | 82,200 |
4. Diesel water pump prices
| Model | Specs; head, flow rate, outlet size, and horsepower | Price in KES |
| AICO | 60M, 40 cubic per hour, 3″ and 10Hp | KES 77,000 |
| Stallion | 75M, 39 cubic per hour, 3″ and 14Hp | KES 80,000 |
| Carltons UK | 85M, 45 cubic per hour, 3″ and 14Hp | KES 80,000 |
| Power Italia | 95M, 39 cubic per hour, 3′ and 14Hp | KES 85,000 |
| Lifan | 84M, 41 cubic per hour, 3″ and 16Hp | KES 85,000 |
| Power Italia | 55M, 120 cubic per hour, 4″ and 16Hp | KES 95,000 |
5. Petrol water pump prices
5.1. High pressure models. These work well with rain-gun sprinkler systems
| Model | Specs; head, flow rate, and horsepower | Price in KES |
| Lifan | 60M, 37.8 cubic per hour and 7.5Hp | KES 32,000 |
| Carltons UK | 60M, 37.8 cubic per hour and 8.5Hp | KES 35,000 |
| AICO | 75M, 20 cubic per hour and 7Hp | KES 35,000 |
| Hisaki | 90M, 30 cubic per hour and 7Hp | KES 35,000 |
| AstraMilano | 90M, 36 cubic per hour and 7Hp | KES 35,000 |
| Power Italia | 120M, 30 cubic per hour and 13Hp | KES 70,000 |
5.2. Low pressure models. They work well with rain hose kits
| Model | Specs; head, flow rate, and horsepower | Price in KES |
| Daishin Honda | 32M, 60 cubic per hour and 7Hp | KES 32,000 |
| KATO | 48M, 36 cubic per hour and 6.5Hp | KES 18,000 |
| AICO | 25M, 45 cubic per hour and 7Hp | KES 18,000 |
Solar Pump Prices In Kenya
Grekkon Limited’s solar pump prices in Kenya for shallow wells and boreholes are determined from test pumping results. Being a top solar water pump suppliers in Kenya, every pump is unique. This is in it’s power rating, head, and flow rate. Our solar water pumps for agriculture under irrigation are available in our branches countrywide.
- Power rating. This is the motor kilowatts (kW) or horsepower (Hp)
- Head. This is the maximum vertical height the solar water pump will push water. It is inversely related to the flow rate
- Flow rate. The amount of water the water pump evacuates per given time. This is indicated as; per second, minute, or hour
Solar Pump Prices in Kenya Tabulation
Below is the cost of solar pump prices in Kenya. For shallow wells (less than 80M deep), with low flow rates (less than 6 liters cubic per hour).
| Model No | Power Hp | Watts | No & Panel Size | Head (M) | Flow rate (liters/ hour) | Price in Kes |
| SP 0.5N | 0.6 | 700 | 300W x 1pc | 40M | 5,800 | 37,120 |
| SP 0.6N | 0.8 | 1,200 | 300W x 2pcs | 60M | 5,800 | 40,215 |
| SP 0.8N | 1.1 | 1,300 | 300W x 3pcs | 70M | 5,800 | 46,400 |
| SP 1.0N | 1.3 | 1,400 | 300W x 3pcs | 80M | 5,800 | 52,600 |
A borehole solar water pump in Kenya’s price is from the test pumping results.
Every solar water pump in Kenya by our technical team is aligned to the power wattage, and water level. This ensures efficiency and maximum longevity. We provide a one year warranty with each pump, and a detailed operational manual.
Our submersible DC solar pumps work with photo-voltaic cells solar panels for both deep well, and shallow wells. Each solar cell has two or more specially prepared layers of semiconductor material that produce direct current (DC) electricity. This DC current is collected by the wiring in the panel. It is then supplied either to a DC pump, which in turn pumps water. Photovoltaic (PV) systems have a high input cost. It has many features which make it attractive as an alternative source of power. It is clean, as it produces no carbon emission. There is no noise generation, and it has low operational and maintenance cost