Originally Posted By: Wayne Wildermuth
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Is it required to have a drain relief valve on the HW heater to relieve the water from the lines prior to draining the tank. I was at an inspection the other day and the buyer’s friend “Mr. Knowitall” insisted that I flag this as a problem. He said that it has been code for as long as he can remember. As an inspector, I know we are not required to point out code violations (at least not here in CT) but, is this really an issue or is it just something nice to have? What is the result of not having one…could the tank become a missile or implode?