Thats sorted it (havent done the lockshield thing or balanceing yet)
THANKS VERY MUCH
I have to admit to already fittting a new pump today - which didn't fix it !, just hope it has some effect on the noise to justify its existance
We been suffering from some early morning banging and clattering lately from the heating ( pump I thought) ,actually any time it started up I think but most noticable in the quiet of the morning. Also noticed that the lounge rad was taking longer to get hot than normal, thats just the
one you...