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Posted by N8N on May 27, 2008, 4:16 pm
> Duke of Hazard wrote:
> > My water heater will over-pressurize and open the blow-off valve and
> > begin spilling water to the drain in the utility closet. I've tried
> > stepping down the temp. incrementally to find a position that it
> > likes, but nothing acceptable for showers will be acceptable for the
> > heater. =A0We've since been turning off the water supply valve to keep
> > it from overflowing when we're not in need of hot water.
>
> > I called a plumber and the guy mentioned that they keep cranking up
> > water pressure through our area to supply the folks farther out with
> > decent pressure. =A0He was wondering if we had a pressure reducing valve=
> > in the unit and I was going to check on that before I had a plumber
> > physically come out. =A0I believe it is more a problem with excessive
> > water pressure coming to the tank because if we shut off the cold
> > water supply to the unit it will not spew water even with the
> > temperature elevated.
>
> Replace the T/P valve under the theory that the most likely culprit is the=
> one that shows the symptom.
I agree but my post was intended to cover all possible bases :)
I forgot a reminder - exercise those T/P valves annually, at the same
time that you do a sediment flush and anode inspection (you do do all
that stuff, right? RIGHT?)
nate
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