Posted by Reginald E. Hughes on July 14, 2000 at 12:25:18:
In Reply to: Leaking relief valve on Peerless Residential Heater posted by John Osterman on February 23, 2000 at 15:34:36:
: We have an eight year old residential oil fired Peerless Cast Iron Boiler with a separate Amtrol Boiler Mate hot water heater. The pressure relief wont stop leaking hot water. The technician replaced the relief valve but it still leaked. He then drained the expansion tank and changed the pressure regulator and it still leaked. He then shut off the water supply and return valves for the Amtrol Boiler Mate and this stopped the leaking at the relief valve. After several days he turned on the water supply and return valves to the Boiler Mate and the leaking started again at the relief valve. The technician's opinion is that the Boiler Mate has a "pin hole" leak inside causing the problem. Does this sound right?
Add some "Boiler Stop Leak" to arrest any potential leakage a relief valve sould always be piped to a drain for that reason a 5-10% weeping
is allowable state to state code may vary
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