Bathroom Plumbing with Concrete Floor

[spikenaylor]

Planning on moving the bathroom into another room, Bathroom is on the ground floor, concrete floor, Bath and sink wastes are about 1.7M away from the outside wall on different sides of the room. Is it ok to cut channel in concrete to take waste pipes outside, Fitting water underfloor heating above and then tiles, or is it best to put waste pipes above floor boxing in, Original waste pipes in previous bathroom look like they went through the concrete and under the sub insulation and then outside.

 

[Ben-gee]

You can do either as long as the falls are correct. If you don’t mind the boxing in method - this is better for future maintenance.