- Messages
- 8
Recent hammer started to get violent. 30yr old extension retained galvanised pipe riser to 1st floor and an unvented hot water cylnder installed (no header tank). No problems until last 9 months or so when pipes began to hammer on turn on/off taps/cistern (grnd and/or 1st). Recently this has become fierce and seems to go back along to the vertical riser. Source appears to start at or be much reduced when these fittings (on the cold supply) are lifted: Does it have anything to do with this part? Is there any maintenance that is required? Puzzled why it has so recently developed.
