Hey guys, whiles getting the toilet pipe routed to under the stairs the builder said that we have LEAD water pipes. as he will be tiling the toilet its best that he changes the water pipe going from under the stairs to the front door with 25MM MDPE for now. And in time the rest can be changed over. does this sound OK? its about 7 meters from the stopcock to the front door and another 8 meters from the front door to the boundary on the pavement. I guess he doesn't wish to do all the digging and I don't want to paying for that as well as the downstairs toilet. can anyone give me any advice?