May 31, 2006 · The pressure relief valve opens to bring the water pressure back down to where it should be. To account for the expanding/contracting of the water, and to keep the maximum pressure down, you may need to add or replace (if it is already there) an expansion tank.

Mar 13, 2025 · The higher 125 psi valve works as extra pressure relief, with the lower valve handling temperature and backup pressure relief. For Utilitech water heaters, their T&P valves are designed to respond accurately to both pressure and …

Feb 7, 2017 · The brass pressure relief valve, marked 75psi, on a system with a 40-60 pressure switch, started leaking, slowly. I turned off the pump, depressurized the system (drained the pressure tank), replaced the pressure relief valve, and immediately it started to leak again - and I hadn't even turned...

Sep 1, 2024 · Hi all, I seem to need to replace my well system pressure relief valve at least once per year. They all develop a slight, intermittent drip. This past time around I purchased a bit better model (Zurn adjustable) and it is dripping after 6 months. My question is - …

Feb 28, 2019 · If I open the pressure relief valve at the top of my tank, I can drain the tank in under 30 minutes, and I can run the hose into the bathtub. Obviously, I prefer the method of opening the TPR valve. I recently had some plumbing …

Mar 16, 2019 · Hi, my 7 yr old Navien tankless water heater has been intermittently spraying water from pressure relief valve every day or so. I changed the relief valve and it still happens. The manufacturer said to check my water pressure. I am currently monitoring my water pressure for my house with a...

Oct 2, 2007 · The relief valve should be teed off a line where it will protect the pump and the pipes directly connected to the pump. The pump is the source of the pressure and it must be relieved if the pump is turned on while the valves to the irrigation system are closed.

May 30, 2011 · Your pressure switch didn't turn off the pump. That's the reason the relief valve released the excess pressure to save your water system. Replace the pressure switch (and the 1/4" nipple) beneath and while you are at it replace the pressure guage. Then everything should work normal. If the relief valve leaks a little, replace it.

Jan 28, 2021 · Check the pressure first though. Even a good relief valve isn't going to hold tight if the pressure is too high. You do need them to relieve pressure for safety reasons. Like the water heater blowing a hole through your roof.

Oct 7, 2020 · Best practice for a water heater temperature and pressure relief valve drain is for it to be piped to the exterior of the house or into an appropriately sized indirect drain inside.