I emptied the water from the boiler using the pressure relief valve, before the heating expansion vessel to 1bar,
I thenand then drained more water from the boiler thinking it wud need it, but now when I try to pump more air into the vessel it just comes out if the auto air vent (no screw present but reading up on it there should be?)
Can anyone assist in whether I need a screw in it tight to repressurise... Thanks.
I thenand then drained more water from the boiler thinking it wud need it, but now when I try to pump more air into the vessel it just comes out if the auto air vent (no screw present but reading up on it there should be?)
Can anyone assist in whether I need a screw in it tight to repressurise... Thanks.