Running Sink Drain Through Floor

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.

Running sink drain through floor. Running drain lines through joists. A sink needs to be connected to your sanitary sewer. There are other less specific guidelines. Running drainpipes through floor joists is more complicated than running them parallel to the joists.

Keep the hole at least 2 in. From the top and the bottom if it s a dimensional lumber joist. When possible notch a stud near the top rather than the bottom. This allows you to run a short section of drain waste vent dwv pipe through a 2 4 wall without beefing up the whole wall to 2 6 dimensions.

If you are in an older home where they are shared you could do it but you will have to excavate the floor and make the connection sub slab with rigid connections and not flexible hose or pipe. However this is simply not true because sinks not only require drain pipes which slope downward and into the stack but they also require vent pipes which. If joists are 16 inches on center and pipes run across them at a right angle holes should differ in height by about 3 8 inch. Diameter plenty big enough for running cable.

Running drainpipe through joists calls for meticulous work. Don t locate holes and notches near large or loose knots and don t group too. Each joist must have a separate notch or hole and each. When installing a new sink there is a common misconception that the sink can be installed before the piping and then simply run the piping through the floor to the existing pipe system.

The holes must follow a straight line across the floor and must ascend or descend so the pipe will be sloped 1 4 inch per foot. The floor drain will be connected to your storm sewer. When a singular drain or pipe in your home gets clogged you can usually remove the obstruction and have free draining water. The hole cannot be larger than one third the depth of the joist so the maximum hole size for a 2 12 joist actual size 1 1 2 x 11 1 4 in is 3 3 4 in.