All rights reserved © KDM Drilling. | Web Design by Miloro

Call us on: 072 776 6163          Borehole Drilling Specialists             Call us on: 072 776 6163        Borehole Drilling Specialists 

Where does borehole water come from?

Water from rain and rivers seeps through layers of rock to underground areas. Water layers of rock or clay separate and confine underground water bodies at different depths, in different areas. These areas are called aquifers. Hard rock aquifers can have their aquifer yield enhanced by natural fracturing. Groundwater is stored and transported in interconnected and naturally occurring fractures within the rock. Boreholes are drilled into a network of fractures that yield water.

Is borehole water safe to drink?

The short answer is a resounding YES! All spring and most bottled water is derived from the ground and over 6% of South Africans survive on groundwater. If you are going to drink from this water source, we always advise to have it analysed at a water lab just to make 100% sure that it is fit for consumption. A simple SANS-241 test will confirm if the water is potable or not.

How much does a borehole cost?

There are many factors that determine the final price of a borehole e.g. the depth of the well, the amount of casing installed and distance we need to travel to get to the drilling site. However to drill a 50 meters borehole with 20 meters of Steel Casing is in the region of R20 500 excluding VAT. This does not include a borehole pump.

Note! No one can tell the actual cost of the borehole until they finish drilling. Be careful of Drilling contractors that will give you the cost of the borehole before they drill. All they need is to get the job and surprise you with additional cost later.

Do I need to register my borehole?

No registration is required if the water is to be used for domestic purposes. Borehole water that is used for commercial or agricultural use needs to be registered and metered.

How deep will my borehole be?

Since ground formation varies from area to area, it is difficult to postulate on the depth of a borehole. Suffice to say that most boreholes are between 30m – 60m, although many boreholes are drilled to 80m and sometimes deeper. It is not always viable to have a borehole that is drilled beyond 100m as the cost to run the borehole pump might exceed the cost of the water.

What is a yield test and should I have it done?

A yield test determines the amount of water in the borehole and the rate at which it can be pumped. It is useful to have a yield test done in order to determine the correct size of your submersible pump. A well selected submersible pump will give you many years of good service.

Will the borehole yield always be the same?

The yield of a borehole is not always constant. Precipitation conditions above the ground will determine the availability of water in the borehole. Natural fluctuations in the weather systems such as seasons and drought will impact on the yield of a borehole.

When is the best time to drill?

Drilling can be done anytime of the year, but it is better to drill your borehole in the driest time of the year as that often gives one an indication of the worst case scenario.

How long does it take to drill a borehole?

It depends on the depth and the type of material which are encountered during drilling. If the driller encounters a lot of rock for example, this is going to lengthen the drilling process. Depending on the depth and rock formation a borehole can take anything from few hours to few days to drill.

Is drilling messy?

YES, it is. In drilling a borehole, material removed has to find its way to the surface. In most situations we initially drill ‘dry’ and this produces dust. When water is found, slurry emerges from the hole. We do our very best to minimise mess where we can.

Can I drill just anywhere and get water?

No. Groundwater travel following a path of less resistance. An investigation as to where to drill needs to be undertaken. Please also note that nobody and no method can accurately pinpoint groundwater.

Do you guarantee that you will find water?

A guarantee that water will be found is not possible.

Do you do water survey?

No, we don’t. Sighting of the drilling spot is the responsibility of the owner. We can, however, refer you to reputable water surveyor if you don’t have one.

Note! The risk of drilling lies completely with the owner and not the drilling contractor. Hence we prefer you show us where to drill.

What if I don't strike water?

There are occasions when water is not found when drilling. There is always a risk that a well may be "dry". In a case like this you would only pay for the site establishment, travel and the number of meters drilled.

What is a "Site Establishment" cost

This is the cost to set up our drill rig, compressor truck and equipment that is required for drilling the well. This cost included the "De-establishment" of the equipment. The process of site establishment and de-establishment can take up to 2 hours depending on the access and terrain.

What is the diameter of the borehole?

We drill many size wells (diameter) but generally a domestic/commercial well is 165mm or 6.5 inch.

What is lifespan of a borehole?

A well-constructed and managed borehole should give you more than 25 years of good service.