Posted 4/15/2025 16:18 (#11190408 - in reply to #11190304) Subject: RE: What is this well fitting
Wisconsin
You need it if the pump is capable of exceeding the pressure rating of the storage tank, in case the pressure switch fails closed, which can happen if it freezes. The water level rising in the well can raise the pressure the pump is capable of, hence the relief valve.
What is this well fitting
