Problems with water system All aspects of plumbing questions and answers, help, tips and information

[fastbilly]

I have water seeping back into my small radiator tank in the loft and filling up thus out the overflow pipe any help ?

[stoneyboy]

fastbilly,
Most likely cause is that the coil in your hot water cylinder has perforated.
end

[ukbill]

[quote="fastbilly"]I have water seeping back into my small radiator tank in the loft and filling up thus out the overflow pipe any help ?[/quote]

another possibilty is the diverter valve is faulty
what sort of boiler do you have