When water source is located very deep underground, then it is necessary to use a deep bore well for water extraction. When aquifers are suitable for water extraction, a suitable location for the pump installation is chosen and a small diameter deep bore well is sunk into the ground and lined with tubes. Deep bore wells extend tens or hundreds of meters or yards underground and a very small diameter extraction borehole pump is lowered into the aquifer to extract the water. Pumps can be offered in 100 mm/4”, 150 mm/6” or 200 mm/8", 250 mm/10" and 300 mm/12" in diameter are used. A submersible pressure transmitter will be lowered into the monitoring well or even into the deep bore well for monitoring the level of water and to protect the pump against running dry, if too much water is being extracted.