glen Posted June 21, 2014 Report Share Posted June 21, 2014 The plumbers aint open till monday so i have a question. Between my meter and shut off i have a expansion relief valve (Watts 530). It is about 20 years old and leaking. I dont think i had an over pressure and its set at 150psi. Do i really need it? I have a plug and that would be easier. Link to comment Share on other sites More sharing options...
aplumma Posted June 21, 2014 Report Share Posted June 21, 2014 IF you are talking about a well system then you need it to protect your water system from over pressuring if the switch arc's together. If it is city water then it is rare to see one and our local codes do not require one. The water heater also has a pressure temperature relief valve to safe guard the system. The water heater one is set usually at 120 lbs. The well tank one is set at 75 psi using a rv50 valve. Please be advised that the statement is for the rules and regulations for the USA and may not be correct for Canadian building codes. Good luck Art Link to comment Share on other sites More sharing options...
glen Posted June 21, 2014 Author Report Share Posted June 21, 2014 City water. Thank you. Link to comment Share on other sites More sharing options...
mcdougy Posted June 22, 2014 Report Share Posted June 22, 2014 cap it. If its behind the meter its yours to deal with. Link to comment Share on other sites More sharing options...
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