Water Heater Check Valve
My hot water stopped flowing. CV went bad, I removed the internal parts. Have hot water now. I have not had the chance to give it a full workout, yet. I know the check valve comes into play when winte...
Forum Discussion
Check valve serves one purpose..replace the cost/installation of another shutoff valve.
Check valves are installed by RV MFG....not by water heater mfg.
Check valve in WH hot out is to prevent backflow into WH when WH is bypassed.
Check valve i WH cold is to prevent Hot backflow into cold system....which really is minimal w/o that check valve and only when system is stagnant (no flow). As soon as there is flow (hot or cold)---end of ANY hot into cold.
If you 'winterize' using anti-freeze then it will get into WH
So replace check valve (better quality---brass vs that cheap plastic junk)
OR be done with it and install a shutoff valve on hot out so it can be closed when WH is bypassed.
Check valves are installed by RV MFG....not by water heater mfg.
Check valve in WH hot out is to prevent backflow into WH when WH is bypassed.
Check valve i WH cold is to prevent Hot backflow into cold system....which really is minimal w/o that check valve and only when system is stagnant (no flow). As soon as there is flow (hot or cold)---end of ANY hot into cold.
If you 'winterize' using anti-freeze then it will get into WH
So replace check valve (better quality---brass vs that cheap plastic junk)
OR be done with it and install a shutoff valve on hot out so it can be closed when WH is bypassed.
