Are all bathroom sink traps the same size?

The size of the trap will depend on the type of appliance and the size of your waste pipework. Generally, the following types of appliances use a standard size waste trap and waste pipework: Wash hand basins: 32mm (1 ¼ inch). Sinks: 38mm (1 ½ inch).

Are sink traps universal?

When replacing a pP-trap, you should use the same type of trap you remove. Traps are made from polypropylene (white or black), ABS (black), PVC (white) or brass (either chrome-plated or natural colored). Traps come in 1-1/4 inch (standard bathroom sink) or 1-1/2 inch (standard kitchen sink) inside diameter sizes.

What kind of trap do you need for a bathroom sink?

1 1/4-inch traps

Bathroom sinks usually use 1 1/4-inch traps, while kitchen sinks usually use 1 1/2-inch traps; 2-inch traps are commonly used on shower and tub drains.

Do bathroom sinks have a trap?

Beneath a kitchen or bathroom sink drain is a pipe with a sharp bend in it. This p-trap has a pair of reasons for its design. These traps prevent sewer gases from entering the home and stop heavy items that have fallen down the sink from being completely lost in the plumbing.

How do I know what size sink trap I need?

If you have 2.5 inches from the bottom of the tailpiece to shelf and 0.5 inches from the drain to shelf you can use CP-trap. First you have to cut 2.5-2.0 inches from the end of the tailpiece. The height of the p-trap is 4.5 inches 5-2.5=2.5 inches or 4.5-2.5=2.0 inches.

How do you know what P trap to buy?

Choosing the Right P-Trap



You’ll need to identify the P-Trap you’re replacing. Kitchen sink P-Traps come in 1-1/2” standard size, while bathroom sinks use P-Traps of 1-1/4” standard size. The traps also come in different material types such as propylene, ABS, brass (chrome-plated or natural), and PVC.

How do you replace a bathroom sink trap?

Quote from the video:
Quote from Youtube video: You can replace it fairly easily. Here's what you'll need to begin remove the old drain assembly from the top down. Use your pliers to unscrew any stubborn slip nuts.

What does AP trap look like?

Quote from the video:
Quote from Youtube video: If you notice a lot of extra piping under your sink then you're looking at the p-trap. Key traps are named after their shape.

Do flexible P traps work?

P-traps take on and maintain the shape of a letter p to keep sewer gases out of your house. When you use a flexible p trap, you’re more likely to get the shape wrong, and you’re more likely to accidentally misshape it when you bump the pipe. Or when you bump it, the force might cause it to spring a leak.

What’s the difference between as trap and P trap?

The only difference between a P-trap and an S-trap is the horizontal length of pipe on the outflow side which allows you to connect the vent. You can turn an S-trap into a P-trap by adding this pipe — it should be at least 4 inches long — and connecting a vent to it.

Is P trap necessary?

A P-trap is required to be installed in most sink, shower, and bathtub drain lines by law. The reason P-traps are so essential is because they retain clean water in the drain line. This water seal stops horrible-smelling sewer gas from coming back up the drain line and into your home.

How do you open a drain trap?

Disassemble The Drain Trap



First, locate the drain trap. Then, unscrew the slip joint nuts found on each side of the “j” bend of the trap. Loosening these will remove the trap from the sink tailpiece and the neighboring wall fitting. If you have a newer sink, unscrewing the drain tap can be done by hand.

How do you clear a sink trap?

How to Clean a Drain Trap

  1. Pour some baking soda down your drain and then pour boiling water down after. Sometimes this will clear the clog.
  2. Use a plunger on your sink drain to try to force the clog out of the trap.
  3. If these don’t work, then you probably have a larger clog, and it’s time to take off your drain trap.


How do you open P-trap under sink?

Quote from the video:
Quote from Youtube video: Using your rag place it in your hand and grip the p-trap. Now grip the other side and you're doing this so you don't actually snap the pipe. And just turn it loosen up a little bit now do the other.