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  1. mbartosik

    RPZ vs check valve

    Since my well pump was unfortunately a little oversized (3/4HP when 1/2HP would have done), I am going to use it to drive irrigation also. The well is currently only used for ground source heat pump NOT drinking/house water. Should I use an RPZ valve ($180) to separate heat pump from...
  2. mbartosik

    pressure in return well (for heat pump)

    I'm still trying to optimize the pumping for my ground source heat pump. I'm wondering if I would likely have some pressure in the return well which would cause the pump to work harder. The return well pipe goes down to the water level, and the return well head is sealed. I'm wondering if...
  3. mbartosik

    constant flow control rather than constant pressure

    For a ground source heat pump you need constant flow (not pressure). For multiple stages of heat pump (in parallel) you need variable flow (or staged flow). With a constant pressure system like Franklin Monodrive (variable speed drive) it is possible to regulate pressure, and then use...
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