*** Dripping relief valve ****
We have a suburban water heater. Had our relief valve replaced but it still seems to drip off and on. Both on gas and electric. Although more on gas. One rv tech says to check the temp of water on gas...
Forum Discussion
Water system in an rv is a 'closed system'.
When water is heated it will expand.
An air pocket at top of water heater tank allows for this expansion (air can be compressed...water won't)
Over time the air pocket can be absorbed into water........then you will need to re-establish the air pocket or pressure will increase due to expansion of water when heated (typically PRV will weep when this occurs).
To re-establish air pocket
Turn off water supply
Open hot side of faucet to relieve line pressure
Hold open PRV via lever until water stops running out
Let PRV snap close
Turn on water supply
Close faucet
Just curious....what was the temperature of the water when heated with gas..with electric.
Normal t-stats are preset to open when water temp reaches approximately 130*F
When water is heated it will expand.
An air pocket at top of water heater tank allows for this expansion (air can be compressed...water won't)
Over time the air pocket can be absorbed into water........then you will need to re-establish the air pocket or pressure will increase due to expansion of water when heated (typically PRV will weep when this occurs).
To re-establish air pocket
Turn off water supply
Open hot side of faucet to relieve line pressure
Hold open PRV via lever until water stops running out
Let PRV snap close
Turn on water supply
Close faucet
Just curious....what was the temperature of the water when heated with gas..with electric.
Normal t-stats are preset to open when water temp reaches approximately 130*F
