Tom wrote:
"Tom" wrote in message ...
"Steve Barker DLT" wrote in message
...
that sounds like the most likely cause. An expansion tank would cure
that problem, IF in fact that's what's happening. ANOTHER cheap way of
dealing iwth the problem would be to flush a toilet AFTER turning the
water off for the night. THEN when the WH causes expansion, it could
just flow into the now emtpy toilet tank.

Should I also leave a cold watewr tap open?

If you're going to continue to turn off supply and have a known leak, I
would recommend turning off or at least way down the water heater
setpoint so don't try to keep it at full temperature w/ no feed and
potential outflow--it's not good.

The answer still is to fix the leak.

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