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Air sucked in through vent pipe on central heating
Anonymous user 23/02/2024 - 2.55 PM
I have an open vented system in which I recently changed the pump, even on the pump lowest setting air is being sucked in through the vent pipe. The setup looks like this: (please ignore the dots ) II . . . .vent into loft II. . . . II II . . . .II II . . . .II II . . . ..========== II . . . .II. . . . . . .II II. . . . II . . . . . .II II . . . .II . . . . . PP (pump into 3 way) II=====II cold . . II feed . .II There is about 1 metre between the cold feed tee and the pump tee (the pump is above cold tee), there was a block in the cold feed pipe which was replaced and drains freely ? Is this piping incorrect causing air to be sucked in ? Can this be fixed by moving the cold feed tee above the pump ? Any advice greatly appreciated. Thanks
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2 Answers
Heat Central