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ANSWER:

The positive pressure on the system may not be correct. If this is the case, it must be adjusted or the pump needs to be moved to the supply side of the boiler to possibly eliminate the problem. I recommend contacting a boiler installer, because heating systems are very intricate today.

Expert's Bio

Jim Jennette is an expert in the plumbing industry and works at the Mr. Rooter Corporation. With more than 20 years of plumbing experience, he is knowledgeable in many areas including installation of plumbing, piping and fixtures. Jim is also skilled in garbage disposals, water heaters and boilers as well as pipe bursting and relining, which is new technology to replace broken underground piping without digging up yards and sidewalks. Before operating a full-service plumbing shop for 15 years, Jim was an educator of English students. He now coaches Mr. Rooter franchise owners in every aspect of their businesses as a franchise consultant, a position he’s had for five years. Jim’s extensive knowledge and resources give him the tools to tackle any plumbing issue or question.