Add an extra toilet to the upstairs bathroom, and change the pipe thicker downstairs, does it affect

Unless it is a drain pipe or riser inside the top, it should be repaired in this way. But generally, the upstairs leaks and the downstairs still have to open the ceiling to cooperate with the inspection.

Will it affect me if I have to make a hole in my bathroom to move the toilet upstairs? >>>More

The toilet originally had a fixed position, so the newly opened hole to install the toilet changed the position of the toilet. There will definitely be a certain impact, such as waterproofing is not done well, it may leak, such as installing sewer pipes must remove the ceiling of your home, if the sewer bend of his house is too long, your ceiling also needs to be lowered in height and redone. If the above problems can be solved, you can consider giving convenience upstairs.

This requires a toggle switch on the two pipes (the inlet is two connected to air energy and solar energy, and the outlet is connected to the shower), and the switch is used to decide which one to use.

OK. It is best to go to their own sewer independently, so as not to have a long time in the future, the kitchen has a toilet smell, and it will be very troublesome to change it.