Deep Well PumpsRiser Pipe for Borehole Pumps: Steel, Plastic or Hose?
The riser pipe carries the water and hangs the pump. How to choose between steel, plastic and flexible riser for a deep well submersible pump.

Model: QJ deep well submersible pumps, stainless steel versions
Deep well pumps for drinking water supply to villages and small towns: reliability, standby pumps, stainless steel and keeping the water clean.
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For a village or small town, the well pump is often the only source of water. Reliability matters more than first cost, and the water must stay clean.
Check the insulation resistance about every two weeks; it should not fall below 0.5 MΩ. Record the current and the flow. A slow fall in flow at the same head is the first sign of wear, and it gives you time to plan a service before the pump stops.
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