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continuous air lock in hot water pipe/taps

Posted: Fri Feb 01, 2008 2:43 pm
by desperado
Have had re-ocurring problem with this since we bought our house 3 years ago. Our boiler is in the attic and our immersion tank is in the downstairs cupboard. We have to bleed the pipework every 3-4 weeks to cure the air lock then it reappears. Once bled it works relatively well then gets worse and worse over 3-4 weeks untill it completey fails to even drip.

Does anyone have an idea as to why this might keep happening??

Please help.