Replace waterheater drain plug ?
This one looks kinda chewed up,, I checked the hardware and they don’t have a plastic one Ebay ?? Are they all the same thread ?? Would you put a little silicone grease or plumbers grease on it when...
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Boon Docker wrote:Old-Biscuit wrote:Dutch_12078 wrote:
Schedule 40 CPVC 1/2" plugs are rated for a 200? max at 118 PSI, so I wouldn't be too concerned about one failing at a 210° T&P relief valve rating at the typical 40-50 PSI used in our RV's. I've used them for years when nylon plugs were not readily available without a single failure that I'm aware of.
Except when water heater temp reaches 210*F the pressure will be close to 150 PSI
Both above the temp/press rating of that CPVC.
Just heating the water to 140*F can cause a pressure rise to 110 PSI
Temp/press ratings should NOT be ignored or pushed aside because one has gotten away with it in the past.
Worked around temp/press my whole life, either can injury/maim in just seconds. BOTH will KILL.
Just saying.....
Wow, you must have really strong plumbing in your RV to withstand 150 PSI in the water heater.
NO...it will NOT withstand it
That is why the T&P Relief Valve is on the dang water heater so it can open and relieve the excess temp/pressure caused by failure of t-stats
:S
