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Posted by Robert J. Sweeney on February 19, 2004 at 16:28:36:
My mom's 30 year old American Standard steam boiler,natural gas with milli-volt system recently has been running out of water every 2 days. Low water cut-off works fine. There does not appear to be any unusual leakage from the radiators. I suspect the boiler itself has a small leak and the steam is going up the flue. Should I try Boiler Solder?- is there a way to test my theory? If we do have to replace the boiler can milli-volt systems still be used?