Ok so you got to love victorian houses, seems im never off these forums!! lol, ok so we have to replace our boiler in the next few months as ours is 30 years old and a bit ****, Our electric shower doesnt work and we dont want to renovate the bathroom yet so I added some cheap shower mixer taps, The pressure isnt great but im sure that will change when the boiler is replaced, The issue is when im mixing the cold tap to get the right temperature i get a banging at around the point where I need the tap to be. The banging is coming from the pipe underneath the bath and we also get a pulsing of pressure from the tap, If i add less or more cold the banging ceases!!! typical, so i either leave it and the pipe bursts or freeze to death or get scolded!!! any ideas, do i need to bleed some air out! The old taps didnt do this when i ran a bath!!