"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?