The standard slope required on a water drainage pipe is 1 4 inch per linear foot of pipe.
Adding drain to bathroom floor.
Connect the basement bathroom plumbing to the existing drain and vent lines in the floor and ceiling to complete the rough in plumbing.
Adding a bathroom in a basement.
From the center of the drain measure 4 inches to the left and 4 inches to the right.
The hot line and cold line are spaced 8 inches apart from left to right.
Once the new plumbing is in place you can add fixtures and furniture to complete the room.
When adding a bathroom in a basement the main concern is how to get the wastewater into the existing plumbing system.
Typically an entire bathroom group vents in the wall behind the sink where a 1 1 2 to 2 inch vent pipe connects to a sanitary t fitting.
Find the main drain line photo 1.
The sinks shower and bathtub must also all connect to the existing drain and waste vent system which means they must connect to the sewer and to the main vent stack.
Locate the main drain.
Lay the piping and secure it into the septic system.
In practice the events from.
Ensure you wear the appropriate safety gear including goggles to avoid injury.
Setting the plumbing for a new bathroom requires you to connect supply water pipes and drainpipes to existing systems.
Measure 21 inches approximately above the finished floor.
Many people don t even consider adding a bathroom because they are sure bathroom remodeling is too expensive.
The cost to add another bathroom.
The bathroom sink s water lines are roughed in 3 inches above the drain.
Using a jackhammer you will need to dig out a trench in the concrete for your new floor drain.
It doesn t have to be.
The vent pipe runs upward to meet the house s main.
If the house is on a septic tank or on a sewer line that will allow the water to naturally flow out of the house then you are in luck.
Creating room for the drain slope as well as for a p trap installed in the drain line beneath the shower necessitates using an elevated shower base.
This will result in the need to step up about 6 inches to enter the shower stall.