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  1. Primary / Secondary relief on water heaters - Love Plumbing

    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 …

  2. TPR valve discharge piping; code vs reality? - Love Plumbing

    Aug 1, 2023 · The discharge piping serving a pressure-relief valve, temperature-relief valve or combination valve shall: Not be directly connected to the drainage system. Discharge through …

  3. reaches 30 PSI and PRV releases water - Love Plumbing & Remodel

    Nov 21, 2011 · At night, when the heat kicks on, the boiler runs up to 30 PSI and triggers the pressure relief valve, draining water out. It also makes a fair amount of noise – some of the …

  4. Navien NCB-240 runs water from the relief valve pipe

    Feb 15, 2016 · The water was coming from the pipe attached to the 30 psi relief valve. I turned the system on and off several times I saw the pressure on the display rising to 40 psi. Sometimes …

  5. Water heater continuously running and water pouring out relief …

    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 …

  6. Problem with whole house pressure relief valve? Need advice from …

    Jan 11, 2012 · The relief valve may just be doing its job. If yours really is adjustable, you could try raising the opening point. A home with a PRV should also have an expansion tank or as in …

  7. Navien NR-240 Pressure Relief Vave Spraying - Love 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. …

  8. Well head pressure relief valve - Love Plumbing & Remodel

    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 …

  9. Drain Pressure tank via the Pressure Relief Valve

    Feb 5, 2024 · The pressure relief valve looks to be adjustable with acorn nut over the adjustment screw. My hope is I can use the large outer nut (the one below the acorn nut, if indeed that is …

  10. Maximum distance allowed away from unit for PRV valve?

    Feb 9, 2017 · Where is the proper location for a pressure relief valve on a hot water storage system? For pressure relief only, you can install a plain pressure relief valve anywhere in the …