UK Plumber Forum 

A place of resource for Plumbers and Gas Engineers in the UK.

Put your Central Heating System question in here.
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By Peter limbert
Hi, hopefully some can help me with this frustrating problem.
My Cold water loft tank is overflowing intermittently and only stops when I draw hot water from taps, showers etc.
How is the back flow of water into the tank happening. Some things I have done so far..
New ball valve fitted and working.
Brand new hot water cylinder fitted by a plumber.
Help !!!
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