Thanks footprints. The top floor shower is electric so I guess that should be ok but yes main shower is a mixer with a very long pipe leading to a head fixed by a plumber who must have been about 8ft tall. So plenty of opportunity for water to run back.
My main concern is the boiler though. As...
Would anyone see any issues with doing this? Looking to replace lead pipe which runs from water main either all the way to stoptap under kitchen sink (back of the house) or possibly changes to new pipe at the kitchen threshold. There are fixed floor coverings in hall/kitchen which ideally we...
