Hi, I am a complete plumbing divvy and currently suffering a loud banging at irregular times all around the house. Loud enough to wake us and the neighbours up. I believe that the banging does seem to happen when the heating is down low after it has cooled a while. We never turn the heating off (is this wrong?) Also I have tried bleeding the rads but although the water is pitch black there doesnt seem to be any air.
PLEASE HELP
PLEASE HELP