header tank in attic is over flowing... the water in the tank is half way,
probably too much cause it expands when hot, whats the best way to get the header tank from having too much water in it
coming off the boiler theres a connection with a lever valve on it... no filling loop i can see... can i get the pressure up to 1.5 bar if i connect the mains into that lever valve
I say it has'nt been cleaned in bout 5 years... pressure is just below 1 bar, could that be a fault too... looking for the fillerloop but cant seem to find it