Bathroom Sink P Trap Size

With your pedestal sink on the wall you can install the p trap.

Bathroom sink p trap size.

However the universal plumbing code stipulates. Every state may have different code on plumbing and it may affect the required size of the bathroom sink pipe. Most states require the washing machine or the washing machine p trap to be at least 2 inches in size for proper draining. This size is actually half as big as one on your kitchen sink drain.

You will need a 1 5 trap adapter and a 1 5 plastic tubing p trap sometimes called trim trap. The most common sizes of the p traps that are used in homes are 1 5 and 2 traps. Most states will also require something called a soap stack as well that should be glued to the p trap. Using a pipe wrench unscrew the p trap s connector and twist the p trap until you can slip a measuring tape across its opening.

That way bathroom faucet manufacturers can provide the right sized drain with their faucet. The height of the p trap is 4 5 inches 5 2 5 2 5 inches or 4 5 2 5 2 0 inches. This size is precisely the diameter of the pipe instead of the length. Traps come in 1 1 4 inch standard bathroom sink or 1 1 2 inch standard kitchen sink inside diameter sizes.

Install the regular p trap with the tailpiece and the end of tubing with a drain. Most bathroom sink drain openings are 1 1 4 inches although 1 1 2 inches and 1 5 8 inches are also common sizes. The u shape of this pipe is the trap that retains enough water to prevent sewer gases from entering the bathroom. Last step is to install the rubber cord.

First you have to cut 2 5 2 0 inches from the end of the tailpiece. Trim trap kits come with two different sizes of washers. The other end of the p trap can slide into and out of the fitting on the wall. It will be a u shaped pipe connected to the straight pipe beneath your drain.

You ll use the 1 5 x 1 25 slip joint washer to connect the p trap to the lav s 1 25 waste outlet. So it makes sense to standardize the drain size. When replacing a p trap you should use the same type of trap you remove. According to the international residential code the maximum vertical distance between the sink drain and the entrance to the p trap is 24 inches.

When you visit a real hardware store or plumbing section the shop assistant will mostly recommend you to use the same size. Traps are made from abs black pvc white or brass either chrome plated or natural colored. After installing new bathroom faucets the drain is usually replaced. However most of the bathroom sinks use 1 inch drain pipe.

Then make a note of this measurement. You can adjust the p trap sliding it up and down on the pipe that leaves the sink drain.