crawl back under house and after uncovering some insulation found the prv valve. tried to adjust in and out on the screw that the guy at lowes said was a adjustment, but did not change stayed between 140 and 155 psi, the valve was rated at 300 psi max on the tag.I guess the valve is bad. noticed water dripping from water release valve pipe off the water heater. maybe from to much pressure?blw2008-09-05 06:03:16