Posted by Don Miehling on December 24, 2000 at 07:28:20:
This is a pretty old residential steam heating system. Since this heating season has started I've noticed
more water loss than ever before - the unit needs to be either refilled or topped off every day - it's manual.
All the radiator's air valves work properly - they close completely when very hot. I've traced all the steam
and return piping and and don't see any signs off water leakage.
I've observed the system as it built up to about 1 lb. of pressure, as it will do in the morning to raise
temperature from the overnight set-back, and think I hear a "whooshing" sound at the boiler,
(as well as all the bubbling of steaming water). But, when I open the skins on the unit there's no sign
of steam escaping, and no water leakage.
Now what? I suspect a steam link in the boiler but how do I confirm it?
If I get a plumber in what kind of testing might he do?
tks
DM