- Joined
- 16 Jan 2009
- Messages
- 11
- Reaction score
- 0
- Country
My old combi boiler has been removed from upstairs and a new Baxi condensing combi fitted downstairs in the garage.The plumber has capped off the old pipes (a hot and cold leading off in one direction and a hot and cold leading off in the opposite direction) and left them dangling (as they no longer have any support since they're not connected to the boiler). They are touching each other and the floor and can be moved and wobbled around easily.My question is what happens to the water in these pipes now as it has nowhere to go?Could this be the cause of the ticking/knocking noises I'm now experiencing and have been told is pipe expansion?I cant work out why the old pipes which have always been silent should be noisy now.If anyone has a diagram to explain what's going on I'd be delighted! Plumber says its not his problem as he just changed boiler and the pipes were existing system! Is this true?