Hello all...
I have an on-demand gas fired water heater. It is an Aquastar, model # AQ 125-B. Recently, it has been leaking through what I believe to be a drain valve. When I run the hot water, the valve spews and won't shut off. I have to shut down the supply line and after I wait a bit it will cease leaking. I want to know the purpose of this valve, and why it's 'acting up' in this manner.
Photo of valve:
Hoping I can fix this myself. I've done my share of soldering pipe in the past. This fitting appears to be glued, rather than soldered. It is threaded. I don't want to call a plumber.
TIA
-- Steve M