There’s two main subsystems in bathroom plumbing network in your home. It is composed of two separate subsystems. One subsystem brings freshwater in, and the other takes wastewater out (sewer).
Waste water from the bathroom goes into a large vertical pipe or pipes, and then into the main underground drainage system.
The water that leaves your bathtub, shower, and sink are all carried through a special line until it meets waste that comes from your toilet. This line does not have any waste material, and once an ideal slope has been applied to it, no waste from the toilet will be allowed to back up in it.
The diameter of the pipe that takes the water from the sink, bathtub, and shower is considerably smaller that the one that takes the overall waste from both lines. This is primarily due to what is known as “flow.” The tube that will receive all the waste material has to have a diameter that allows everything to pass.
Common bathroom plumbing fixtures
include sink, toilet and bathtub. All these devices are connected to the [plumbing network and require frequent maintenance.