How to Repair a Leaking Water Heater Pressure Relief Valve Pressure relief valves sometime develop a drip when opened for the first time in years. Try opening and closing it a few times to see if it will seat itself.
A puddle of water near the overflow tube can be a sign of a bad temperature-pressure relief valve. We’ll show you how to replace it and add an expansion tank if the relief valve doesn’t solve the problem.
Replace Hot Water Tank Pressure Relief Valve - T&P