Per Pentair's manual, I removed the water pressure switch from my Pentair heater for winterization. There was a thread sealant applied - I'm wondering what I should use when I reinstall it? Pentair support did not have any recommendation.
Welcome to TFP! For a wealth of pool care information please check out our free Pool School. If you are in need of specific help then we encourage you to Register and ask us here in the forum!