Plumbing A Sink Through The Floor

Toilet rough in details.

Plumbing a sink through the floor.

The bathroom sink rough in dimensions are as follows. You will also need to connect the drain pipe to the main vent stack. Both sinks connect at one point sharing a common true vent to the stack. Cut notches about an inch wider than the pipe to accommodate a fitting.

Cold water only pipe creates one hole between 5 and 10 inches above the floor supply line horizontal. As far as the kitchen sink goes most of the code issues of concern to homeowners involve the drain and waste system. Measured from centerline running vertically through the center of the toilet supply line hole should be 6 inches to the side of centerline. Improperly installed drain and vent components can cause blockages water contamination and the release of dangerous sewer gases into the home and they can affect the plumbing in other parts of the house.

When you are installing a kitchen sink drain pipe along with the drain attachment on the floor you will need to be able to fit the drain and the parts together. Slip lengths of 2 inch pipe down through the holes drilled in the floor plate for the tub and sink vents. If you are lucky and the relocation is up the line i e. Adding another bathroom or relocating plumbing fixtures during a remodel requires running new drainpipes.

The bathroom plumbing rough in dimensions you need to know. The center of the lav s drain is located 18 approximately above the finished floor. You can add a vertical vent to the sink drain pipe and have it connect to the main vent stack the water supply line fittings should be located two or three inches above the drain pipe fitting. It also shows what the sanitary cross would look like if you happen to have a sink on the other side of the wall.

This image clearly displays what the loop vent looks like which you may need to use if your sink is too far away from the stack for a re vent pipe. How to install drain lines through the floor. In most communities a permit from the local. You can use a 12 pipe and glue a cap on top of it.

Ideally 8 1 4 inches above the floor. Have a helper hold the pipes plumb as you mark the plate below for notching. Check toilet to confirm location water supply connection.