Here are two YouTube videos on the subject:
http://www.youtube.com/watch?v=5Sm5dHAqTcI
http://www.youtube.com/watch?v=pVxPt6rwHn8
"mcsteve" wrote in message
...
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: http://i37.tinypic.com/s41hrm.jpg
Photo of heater: http://i34.tinypic.com/30t1a43.jpg
The valve is mounted about 12" below the heater. Unit
is a wall mount. Valve is at the end of a horizontal cross
member that's 'teed' off the vertical pipe that I assume is
the outlet from the heater.
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