Chukar Hunter
Senior Member
On my last trip I fired up the water heater for a nice shower on the last day and when the water came up to temp (not over heated) the relief valve opened up on the top. I don't think it was too hot or over pressured but maybe I have created my own problem. Over the years when I drain my heater I have opened the valve to vent the tank so it would drain faster. Did I weaken the spring and cause this problem? Or do this valves go bad and need to be replaced?