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Posted by Harold hydronicnetwork.net on January 04, 2004 at 19:12:48:
In Reply to: gurgling sound in pipes when circulator runs posted by GStrehlow on January 04, 2004 at 18:35:42:
Read the air purge procedure at:
http://64.226.150.132/hydronic/service/purgeair.htm
It will tell you how to set the minimum pressure and what to expect.