Afternoon all, Im taking on the renovation of our old bathroom and have a couple of questions. Looking at the picture you can see that I have lead pipes (hot/cold) curving up from under the floor. The hot water continues into the next room. After the 22mm isolation valves theres a T on each, the pipes that run to the left go back down to the kitchen and the pipes to the right fed a sink (removed) and the cold water to the other bathroom on the other side of that lath wall through that white plastic pipe. My intentions are to strip out all the lead both hot and cold water and run all new pipe, the room below this is the kitchen and I understand the main comes up in there behind a cupboard so Ill cut it there put a lead lock on and add a proper isolation valve there as currently, I have to cut all the water off outside. Questions: The bathroom behind that wall will be being removed once this one is re-instated, if you look at the lead pipes where you first see them exposed you can see that the right hand pipe (hot) t-s off to feed this bathroom, that pipe continues into the next bathroom. It can only feed the hot tap of the sink as we have an electric shower in there. I need to be able to cut that, I know that means no hot water to the next bathroom but meh, I'll let it drain and then just leave it open so I can pull it out when I gut the other room. Will this be a problem? I have a mixer tap in the other bathroom and know that the water from the cold could flow back down the hot. Should I just cut the hot feed to where it comes out the floor in the other bathroom and put a stop end on the bit of pipe left connected to the tap? The cold water feed to the next bathroom is through the white plastic pipe in the picture (top right), I intend to use Hep20 Pipe and fittings when I run all the new stuff however I dont know what brand the existing plastic pipe is that goes under into the next bathroom so when I need to join back to that pipe to reinstate the cold water what fitting should I use, would a compression isolation fitting be appropriate? Finally, that lead hot water pipe must be attached to a copper one somewhere near my combi boiler, when I find it am I allowed to change the lead myself or must I get a corgi person in? Same goes for the cold feed to the boiler I suspect it'll be lead? I hope that all makes sense, if not apologies and ill try to clarify in further comments.