Borehole Flushing - What Causes Borehole Siltation and Why You Need To Flush Your Borehole!

At Harare Boreholes, we once completed an interesting project where initially our client suspected that the aquifer was running dry, as the borehole output had dropped off and the pump was sucking air. 

Due to the location of the site and knowledge of the ground conditions, we suspected that the fault was more than likely due to the PVC bore screen having become blocked and silted up.

So once our client had contacted us, with our Operation Manager's vast knowledge of hands-on engineering skills, he devised a method to desilt the bore and clean the bore screen section. As soon as our engineers arrived on site they immediately realised that our suspicions were, in fact, correct, as all around the borehole entrance and surrounding area was a fine film of silt. 

Borehole Flushing in Zimbabwe - What Causes Borehole Siltation and Why You Need To Flush Your Borehole!

We flushed the Borehole and within a short period of time, it was obvious that our plan was going to be successful, as we had removed quite a large volume of silt from the borehole increasing the yield. 

The more silt we removed the greater the yield.

Once this process was completed a new pump was installed and the bore test pump. Our client was ecstatic as they had started to consider that it was going to be necessary to drill a new borehole water supply. 

If you are experiencing similar problems then contact us for further advice, we would be more than happy to offer our services.

Borehole Flushing: Borehole Flushing is needed when the pores of the aquifer inside the borehole get clogged by slit and sand-sized particles or mineral deposits reducing the permeability of the aquifer making it difficult to pump water, thus reducing the water yield. 

This can happen over the course after prolonged usage of a borehole for years or it can happen quickly after just a couple of years depending upon a variety of factors. 

These particles that deter the water flow, may reduce the water yield, change its odour, colour, or even taste and hence must be removed as soon as possible to improve the water yield and quality. And this is where our Borehole Flushing Services in Zimbabwe come in.

Borehole Flushing In Zimbabwe

We can help you accomplish this quickly and efficiently at an affordable price point.

At Harare Boreholes, we use high-pressure water injection procedures with advanced air compressors and flushing tools. Compressed air is passed into the borehole clearing out all the silt and sand, raw dust, decayed particles, mineral deposits, and other extraneous particles that are causing the borehole to clog. 

The borehole flushing process is continued until all the particles are cleared and a clean stream of water is pumped out of the borehole. After a borehole is thoroughly flushed you can enjoy a clean and boosted water yield that continues for years.

ProWater Solutions Zimbabwe Has Extensive Coverage Around Zimbabwe.
We also have a substantial presence and exprerience in Borehole Siting and Borehole Drilling, Borehole Installation and Solar Systems.
Please Call Us On +263 77 389 8979 or +263 71 961 3479.

Please Note: If you are interested in getting Expert advice on Borehole Drilling and Borehole Installation in Zimbabwe, we provide that information for FREE here at ProWater Systems Zimbabwe. So feel free to get in touch with us to discuss your project by calling or sending a WhatsApp message.

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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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ProWater Sales 1: +263 77 389 8979
ProWater Sales 2 +263 71 961 3479.