Posted by Harold Kestenholz - Hydronic Network on July 21, 2001 at 16:26:34:
In Reply to: Harold thanks one more question on bleeding the system posted by Dominic on July 21, 2001 at 14:50:48:
If you have an automatic air vent, it is a sort of leak. Air came in with the water, as the air leaks out the pressure drops. If that is the only thing coming out of the system, then adding water until all the air has left should keep your system to pressure.
If your system will not hold a pressure, you definitely have a leak.
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