Plumbing pressure relief
I'm running on internal water (not city water). I don't leave the water heater turned on all the time (too wasteful to do so) and when I turn it on it raises the pressure in the whole plumbing system ...
Forum Discussion
Air Pocket in top of tank helps control pressure increase.
Water swells when heated.. without air pocket the internal pressure can increase enough to cause high pressure in both hot & cold systems
Only a FEW RV MFGs install check valves on Cold Inlets
Air Pockets form naturally when filling the WH Tank...same as residential WHs
Air pocket can get absorbed into the water regardless of use ...cleaning etc
RV WH Tanks are SMALL and the air pocket can easily get lost
Turn water off
Open faucet hotside to relieve pressure
OPEN T&P ---hold open until water stops flowing out
Let it SNAP Close
Close faucet...turn water on (pump or city doesn't matter)
Water heater should be heating to 130*F (Suburban) or 140*F (Atwood)
An accumulator WILL help considerably
Water swells when heated.. without air pocket the internal pressure can increase enough to cause high pressure in both hot & cold systems
Only a FEW RV MFGs install check valves on Cold Inlets
Air Pockets form naturally when filling the WH Tank...same as residential WHs
Air pocket can get absorbed into the water regardless of use ...cleaning etc
RV WH Tanks are SMALL and the air pocket can easily get lost
Turn water off
Open faucet hotside to relieve pressure
OPEN T&P ---hold open until water stops flowing out
Let it SNAP Close
Close faucet...turn water on (pump or city doesn't matter)
Water heater should be heating to 130*F (Suburban) or 140*F (Atwood)
An accumulator WILL help considerably
