A leak could indicate high pressure or a malfunction that requires replacement. Here are the most frequent reasons why water dripping from the water heater relief valve occurs When the water heater operates, it heats water, causing it to expand
Pressure Relief Valve Leaking On Pressure Washer at Stuart Beeman blog
If the expansion exceeds the tank’s capacity, pressure rises
Most valves open at 150 psi to release excess pressure.
Is your water heater’s pressure relief valve dripping water even when there’s no hot water running A leaky relief valve can be annoying, messy, and wasteful In this comprehensive guide, we’ll walk you through the potential causes and solutions so you can stop that leak for good. Several factors can cause a pressure relief valve to leak on a new water heater.
To determine if the pressure relief valve is the culprit, visually inspect the valve and surrounding area for signs of water Place a bucket under the discharge pipe and monitor it for water accumulation Also, gently lift the valve’s test lever to check that it’s not stuck open.