Tom wrote:
"Tom" wrote in message ...
How can I check the water heater pressure relief valve?

Where is the pressure relief valbe? Is it the valve on the side near the
top of the heater cylinder with a long copper oipe going to the bottom of
the heater?


Hi,
Yes. You can't test it. It either works or leaks. Replace it if in
doubt. It's called P & T relief valve.(Pressure and temperature)