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Leaking pressure release valve

Skipg
Explorer
Explorer
Just replaced to hot water tank pressure release valve and re- establish the air pocket in the tank , but alas its still leaking. Could be a bad valve? Or any other suggestions would be appreciated .
Thanks Skipg
10 REPLIES 10

mbopp
Explorer
Explorer
After several days our T&P would start to weep. I figured it lost the air bubble so I'd release the pressure, open the valve, and open the low point cold drain to get another bubble in it.
We just got back from a week-long trip w/o a leak. Maybe coincidence, but I installed an expansion tank this spring.
2017 Grand Design Imagine 2650RK
2019 F250 XLT Supercab
Just DW & me......

Old-Biscuit
Explorer III
Explorer III
NEW T&P Relief Valve and it is leaking :H

With WH OFF, water cooled downed....OPEN valve with water supply still on and let it blow thru new valve. Stand back cause water should blow out several feet.

YUMA water and installing new T&P you probably stirred up some scale/debris from inside tank and it is stuck on valve seat

New valve and air pocket established.....T&P should not weep UNLESS normal t-stat/high temp t-stat have FAILED and water temp is 210*F or pressure inside tank is above 125 PSI
Is it time for your medication or mine?


2007 DODGE 3500 QC SRW 5.9L CTD In-Bed 'quiet gen'
2007 HitchHiker II 32.5 UKTG 2000W Xantex Inverter
US NAVY------USS Decatur DDG31

GaryWT
Explorer
Explorer
Ours will leak from time to time, no big issue just doing what it is suppose to. Generally happens mostly if we have the gas and electric on after our showers and we forgot to turn one off.
ME '63, DW 64, (DS 89 tents on his own, DD 92 not so much), DS 95
2013 Premier Bullet 31 BHPR 2014 F350 Crew Cab 6.2L 3.73

nomad297
Explorer
Explorer
What is your hot water temperature? What PSI is your water pressure?

Bruce
2010 Skyline Nomad 297 Bunk House, 33-1/4 feet long
2015 Silverado 3500HD LTZ 4x4, 6.0 liter long bed with 4.10 rear, 3885# payload
Reese Straight-Line 1200# WD with built-in sway control
DirecTV -- SWM Slimline dish on tripod, DVR and two H25 receivers

golf_bears
Explorer
Explorer
Take the valve off, soak it in vinegar water solution or a commercial cleaner. Rinse valve and replace. Should work fine after that.

lbrjet
Explorer
Explorer
Is your water heater on? Maybe it is just doing its job.
2010 F250 4X4 5.4L 3.73 LS
2011 Flagstaff 831FKBSS
Equalizer E4 1200/12000

darsben
Explorer II
Explorer II
Empty tank and back flush valve to see if maybe a piece of grit is stuck.
Let dry, PB Blaster the rubber seal etc.
Traveling with my best friend my wife!

Houston_Remodel
Explorer
Explorer
They often get stuck in a slightly open position. While you can play with it to get it to seal again, the risk is too high for my tastes and therefore just replace the valve. Its cheap insurance.
2015 Starcraft Launch 24RLS
2014 Ram 2500 diesel 4x4
Guarded by 2 Jack Russells

Skipg
Explorer
Explorer
Yes it did snap back I even tapped on the pin

Wiscampsin
Explorer
Explorer
Have you let it 'snap' back into position?