Question about Amtrol ST-5-C THERM-X-TROL ASME Expansion Tank, 2 Gallon
Yes ,if your tank is under pressure or water logged then when your water expands when heated it has nowhere to go, i'm assuming by the model you described that you are referring to your heating system. you need to drain the pressure down on your boiler to 0 than take an tire guage and check it on the sniffter valve underneath the blue cap. it should be about 15 pounds. if not pump it up with bike pump or compresser.wait for about an hour and recheck if not holding air then discard, you need to save the water you drain and pump it back in somehow, as it could be glycol, or have rust inhiters in it. if you take a reading without draining it will give you a false reading
Posted on Oct 24, 2010
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Posted on Jan 02, 2017
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