i have an old glowworm combi boiler the pressure has dropped and needs to be increased but the filling loop got left on and has coroded,how can i free it to enable me to increase pressure please
Just bite the bullet and renew it..isolate the mains and remove and replace faulty item,the water in your boiler should be contained by a non-return valve-do not remove this.
corgisteve
November 2008
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