Blowing out water lines for winter storage.
Last night I decided to blow air through my water lines to drain for winter. I started with the low point drain caps both off. I used the blow-out attachment to connect my compressor to my city wat...
Forum Discussion
It is possible your water heater filled up with pressurized air and a check-valve somewhere in the line is holding the pressure. Why don't you try pulling the pressure relief valve on your water heater and see if air spews out. If it does, then somewhere you missed a valve to bypass the water heater. 60 psi seems awful high. I know each RV is different. The Keystone Manual say 30 psi.
