Combi Boiler losing pressure

[Graham.]

I've got a combi boiler and at least once a week I need to top up the pressure on the radiator circuit. This means bleeding the radiators as well. Looked everywhere for a leak and can't find one. Is there any other way that you could lose pressure ?

Thanks in advance,

Graham.

[ARWadsworth]

and

may help

Adam

[Graham.]

Thanks Adam,

Couple of cracking articles there. Now have a few things to try.

Graham.

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