Kitchen Sink Plumbing Under The Floor

I would like to drop the sink drain through the floor underneath the base cabinet rather than plumbing into the wall.

Kitchen sink plumbing under the floor.

I am remodeling my kitchen and moving the kitchen sink about 6 to an outside wall. The commode drainpipe is the largest in diameter either 3 or 4 inches and all. Referred to as a floor sink. Around plumbing pipes under your sink.

However the sink is currently 5m away from the drain. The length of the tailpiece that connects the drain to the trap depends on a. Right now i m in the middle of replacing a copper water supply line from underneath the kitchen sink to where the dishwasher goes. It is similar to a floor drain as it is installed flush with the floor but has a much larger chamber to receive the indirect wastes and does have a strainer as called for in the plumbing code in addition to the grate.

The sink s drainpipe runs downward to connect in the floor to the main drainpipe which originates with the commode. I ve looked at the regs and we seem to have room for the pipe size and gradient required assuming we put it under the floor. Identify each of the following. The reference gives more information on pipes for the kitchen sink.

Cleanouts are generally required on horizontal branches of drain pipe but because the p trap has removable connections it can serve as a cleanout so you usually don t need another one under the kitchen sink. 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. Two tailpieces and a tee if a double bowl sink one p trap one long straight section and one long elbow section. I would like to do this to avoid cutting into a number of studs cripples that are supporting a large window.

The receptor pictured is a pvc floor sink which can be obtained at a reasonable price. Make sure this is the shortest path possible before you physically remove flooring to lay the pipe. In order to do this you will have to attach the drain to the s trap below your sink where it falls into the floor including applying putty and putting drains into the base of the sink adding the tailpiece and then fitting the t fitting onto the bowl. The p trap is an important component of sink plumbing that prevents toxic sewer gases from leaking into the home.

Plan the path of your pipe start preparations by running your 2 inch drain pipe under the floor from the kitchen s main waste stack to the cabinet housing your island sink. A cleanout is a removable threaded cap that gives you access to the drain pipes so you can remove blockages with a drain snake. Install the new water supply lines. Place the new pipe on the floor in the work area.