All You Need to Know About Borehole Drilling

Water is essential for life, whether it is that of plants, animals, or humans. However, the reality is that as the human population has grown, the risk that we may be exhausting the supply to our homes and businesses is increasing faster than they can be replenished. The evidence of this shortfall can clearly be seen in the steadily escalating tariffs charged for this service and the continuing need for conservative use during periods of drought. Many more South Africans are now considering a borehole and want to learn more about the drilling process and various other aspects of the installation.

Often, the process will be undertaken by a number of different specialists, although some of the better companies will be able to offer a turnkey operation. At the risk of sounding negative, it is important for anyone hoping to tap into a source of groundwater on their premises that the contractor who will be responsible for creating your borehole will be unable to guarantee that the drilling will result in an adequate supply of underground water or, in fact, any water at all.

Hiring a dowser can markedly improve the chances of locating water and where it is best to drill. However, assuming there is an aquifer on your premises, just how deep it may be necessary to drill can still not be known with absolute certainty. While a hydrological survey offers a good estimate, the usual arrangement is to quote for a hole of a pre-agreed, estimated depth plus a figure for each additional metre you may agree to beyond that estimated depth.

Let us assume that your borehole drilling has produced water. The next steps must be to detemine if the supply will be sufficiently sustainable and to investigate its quality. Your contractor will perform a variety of tests to determine factors, such as the volume and pressure of the underground source and what impurities may be present that might need to be removed. Only if the groundwater is to be merged with the domestic supply will intensive pre-treatment be necessary. Otherwise, for irrigation purposes, outdoor cleaning, and topping up the pool, it should be fine in its untreated state.

Following the borehole drilling and testing, a stainless steel liner is fitted into the shaft to prevent soil from contaminating the supply, it is then time to insert a submersible pump. The pump must be sufficiently powerful to raise the water to ground level or higher where elevated pipework may be necessary to complete a given installation. The engineer will determine the required pump specifications, connect it to the power supply, cap the well head, and proceed to install the necessary controls.

A word of warning: a mobile drilling rig is a bulky piece of equipment and, unless your home offers easy access to the proposed drill site, it may be necessay for a contractor to remove and, later, replace a section of wall, which is going to add to your total cost. That said, the addition of a borehole will add to the resale value of your home, and the overall cost will be slowly recovered by the savings on your municipal water bills. When you are ready, give Water Pump Group a call for a quality, turnkey experience.