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Frequently Asked Questions

A borehole is the generalised term for any narrow shaft drilled in the ground

Typically, a borehole used as a well is completed by installing a vertical pipe (casing) and well screen to keep the borehole from collapsing.

This also helps prevent surface contaminants from entering the borehole and protects any installed pump from drawing in sand and sediment. When completed in this manner the borehole is then more commonly called a well.

Boreholes can be drilled up to 300 metres 

A wellpoint is a small-diameter, closely-spaced shallow well, which offers a highly economic and versatile method of groundwater control where drawdown requirements onsite are less than 5-6 metres in depth

Filtration is the process in which solid particles in a liquid or gaseous fluid are removed by the use of a filter medium that allows the fluid to pass through while retaining the solid particles.

Filtration may mean the use of a physical barrier, chemical, and/or a biological process. The removal of particles takes place with processes including: straining, flocculation, sedimentation and surface capture.

A wellpoint is a polyethylene pipe with a filtered end installed into a porous soil structure. The water is distributed by means of a surface mounted centrifugal pump.

A borehole is a shaft drilled to depths exceeding 20 metres with a large diameter casing allowing for the installation of a submersible pump to distribute the water.

A wellpoint installation takes approximately 2 – 4 hrs whereas a borehole installation can take about 3 – 5 days.

Once the wellpoint / borehole installation has been completed and the water has been tested you will be informed if it is suitable to fill your pool with.

Cawellpoints Boreholes and Wellpoints

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