Floor Trap Drain Pipe

The trap inlet connects to the drain tailpiece which is the pipe that extends down from the sink and the outlet connects to the drain.

Floor trap drain pipe.

Once the square piece has been removed cut the drain off with a saw right after the p trap. Because the floor drain connects to the sewer system sewer gas can drift up the pipe and enter your home through the drain. To ensure water will drain properly and won t back up in the line a good rule of thumb to follow when installing pipe is a drop of 1 4 inch per foot. Trap with copper drain pipe at underside of firestop packing in 2 hour fire resistance rated concrete floor slab typical p trap maintaining the water seal is critical to trap operation.

A form of floor trap commonly used in practice is known as nahni trap. The floor trap has a small water seal. Floor wastes are installed to provide drainage for accidental water spillage and a dry floor waste does not have a water trap. The drain must connect to a trap that blocks the gas by catching water in a curving section of pipe creating an airtight barrier.

The drainpipes that connect to floor drains must have a minimum vent size of 1 1 2 inches. If the drain is in the floor you may have to swivel the. A gully trap is provided at the junction of a drain carrying sullage from baths kitchens wash basins etc and the drains carrying rain water from roofs and courtyards as well as room washings. Traps might dry out and poor venting can suction or blow water out of the traps.

You can throw this piece away. When attaching your new p trap to the end of the pipe you may need to use a reducer if the pipe coming up from your shower floor is a different dimension than your new p trap and your drain. Every drainpipe whether underground or in a wall must have some type of pitch and be sloped properly to allow wastewater leaving the home to drain out. Without a trap it must not be connected directly to a foul drainage.