Borehole Pump Selection and Installation with Nakiso Borehole Drilling.

Pump selection for your new or existing Borehole depends on several criteria. 

Volume and pressure required, depth and yield of Borehole, application, power available, efficiency and importantly, reliability.


The most important aspect of any Borehole and pump is that they are matched to suit. There is no point in installing a 2HP pump in a Borehole that is suited for a 1HP. Indeed it will be detrimental to both the Borehole and the pump if this is done. It is always best to install a pump of slightly less capacity than the yield of the Borehole.

A 30LPM (Litres Per Minute) Borehole should have a 20 or 25LPM (Litres Per Minute) pump, no more.

Volume and pressure required will obviously vary depending on the application, whether the water is going into storage such as a tank or dam, or whether the water will be used directly from the Borehole. 

If the water is to be used directly from the Borehole then will the water be used via sprinklers, drippers, open hose or other uses?
Borehole Pump Selection and Installation with Nakiso Borehole Drilling.
Borehole Pump Selection and Installation with Nakiso Borehole Drilling.
First having a good idea as to the way you would like to use the water will aid in choosing the pressure and volume required from your pump.

The depth and yield of the borehole will dictate, to a certain degree, especially if it is a low yielding Borehole, the size and type of pump that will best suit the borehole. Yields from low yielding boreholes can be maximized with borehole level controls fitted to the pump. These controls allow the pump to run until the water level is within a few metres of the pump and will then shut off the pump, reinstating the pumping when the borehole has recharged to a safe level. Not only does this protect the pump from running dry, but it also allows the pump to cycle its pumping to attain maximum yield from the borehole.

The application of water use will affect the pressure rating required and the control system of the pump. 
Borehole Pump Selection and Installation with Nakiso Borehole Drilling.
Borehole Pump Selection and Installation with Nakiso Borehole Drilling.
A simple pressure control module will suffice for most applications as it will make the pump “start on-demand”, that is, the pump will start automatically when a tap is turned on and stop when a tap is turned off. If the application will be for tank filling then the process can quite simply be automated to turn the pump on when the water level of the tank starts to fall and when the tank is full, then the pump will turn off automatically.
Borehole Pump Selection and Installation with Nakiso Borehole Drilling.
Borehole Pump Selection and Installation with Nakiso Borehole Drilling.
Power available is important as a poor power supply in some rural areas can cause headaches, especially with power surges. Most domestic systems run on single-phase household supplies, with larger commercial or irrigation systems requiring three-phase power, either mains or generator, to utilize high yields of water, 250LPM (litres per minute) or more.


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Five Facts About Borehole Drilling That You Need To Take Note Of:
1. Know Your Borehole Casings:The Preferred Borehole Casing In Zimbabwe Is Class 9 and 10 (Pressure Classes.)This is because Class 9 and Class 10 Casings are more collapse resistant. The strength of a Casing is often described as collapse resistance.

2. Borehole Drilling Depth: The exact depth, of where the water is located, cannot be established by the drilling contractor nor the Water Surveyor (Borehole Siter).

3. The Is No 100% Guarantee On Water: It is important to note that it is never a 100% guarantee that any hole will yield water, the amount and water quality can also not be guaranteed by the drilling contractor and water surveyor.

4. Borehole Siting or Water Surveying Is Important: Making use of a hydrologist or traditional water diviner will increase your chances of having a successful borehole that will yield a sufficient amount of water.

5. Know The Risks: The risk of the borehole drilling lies with the property owner. The client will still be liable for the drilling costs irrespective of a borehole yielding water or not.

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Business Offices: 65 Churchill Avenue, Alexandra Park, Harare North, Zimbabwe.

Call Us Today:

Office Numbers: +263 242 48 0141 and +263 867 71 88844

Sales: +263 78 860 8009
Operations: +263 78 860 8005
Marketing: +263 78 876 6701

Email: info@nakisoboreholes.co.zw
Website: www.nakisoboreholes.co.zw

Nakiso Borehole Drilling - The Best Borehole Drilling Company in Zimbabwe!

Nakiso Borehole Drilling has experience and knowledgeable workforce to work on any type of installation. From solar powered, electrical and manual pump installation, we do it all under one roof. Nakiso Borehole Drilling covers borehole siting, drilling and installation of pumps.