Chris wrote in news:Fi_Jd.19223$ky2.4539
@bignews4.bellsouth.net:

Interesting...

I have an electric water heater...does the expansion tank still apply?

Chris


You are still heating water, water expands when heated. Pressure is a
factor of volume in a given area. Since with all the water taps off, and
the PRV in the line, you have a 'closed' area. Increasing the temperature
of the water increases it's volume, the area is fixed, so the pressure
goes up.



--
Anthony

You can't 'idiot proof' anything....every time you try, they just make
better idiots.

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