Originally Posted by bcg
Yeah, they create some back pressure on the pump that will vent out the release valve. It will dump a fair amount of water so you want to put it somewhere that can handle it or you'll end up with a lot of standing water. It can be a pain to find a good spot to drain it to but it is less of a pain than replacing a well pump.
Why do you have the relief plumed in between the csv and the pump? Pretty sure the manufacturer doesn't recommend that. This is from their site
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