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Relief valve leak
Mplumber1
Member Posts: 2
11/2 30psi relief valve leaking out of a side port that’s built into side ,when not discharging and only at 20 psi what do u think
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Comments
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Pressure relief valve? Pressure reducing valve? Backflow preventer? Pressure relief valves have one outlet. If it is leaking, it needs to be replaced. I'm thinking this is a backflow preventer, which may have a side test port.
Picture? Or model number?Br. Jamie, osb
Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England0 -
Trust me it a relief valve and has a side port
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How do you know the relief valve is bad. What is the pressure gauge telling you?
Could be a bad or waterlogged expansion tank
or a bad pressure reducing valve leaking water into the system
or a bad tankless coil or indirect water heater if you have one
If the expansion tank is a compression tank drain it
If it is a bladder tank isolate it or remove it from the system and check the air charge
Try leaving the make up water valved off to the boiler0
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