Sump Alarm Blog » Dual Float Switch
06
August
Wiring for Dual Float Switch System; Well (high level ON), cistern (low level ON)
A common use of float switches is in potable water systems, specifically in systems where a well pumps water into a cistern. What if you want the pump to run only when the water is high enough in the well, and when there is enough volume in the cistern to store water? What if you can only find float switches that are rated under the nameplate HP of your pump? Wiring a potable water pump in a 2 float switch setup is no longer an issue with the utilization of a electro-mechanical relay in addition to two Sump Alarm 3-wire float switches.
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