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
T&P on RV water heater will weep at 125 psi
Not many RV MFGs install a check valve on INLET
And not many have issues with T&P weeping but it does occur
Some can experience weeping EVEN with an air pocket....that is where an accumulator tank can help
** most install accumulator tanks to help with pump cycling during low demand & being able to turn pump off at night and still be able to flush the toilet
But they will also help control system pressures
My WH Tank does NOT have ANY check valves..has 3 shutoff valves
And even w/o check valves I have never had T&P weep except when air pocket was lost.
Not many RV MFGs install a check valve on INLET
And not many have issues with T&P weeping but it does occur
Some can experience weeping EVEN with an air pocket....that is where an accumulator tank can help
** most install accumulator tanks to help with pump cycling during low demand & being able to turn pump off at night and still be able to flush the toilet
But they will also help control system pressures
My WH Tank does NOT have ANY check valves..has 3 shutoff valves
And even w/o check valves I have never had T&P weep except when air pocket was lost.
