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Posted by greg large on December 11, 2008 at 06:26:18:
I am having trouble with my boiler building presure going to high and blowing off the relief valve and causing air in the lines. The presure is set as low as the fill valve will allow and the blader tank is at about 7 psi. there are 3 zones, up stairs, down stairs, and domestic hot water. I am frustrated with this thing.
Greg