Peerless What Size Waste Pipe For Bathroom Sink

Sewer drains from laundry sinks or washing machines are 2 inches in diameter and those from sinks in the kitchen bathroom or powder room generally use a 15-inch pipe.

What size waste pipe for bathroom sink. Its about 5 feet away from the main stack in the house. Common Waste Pipe Sizes in the UK 215mm This is used for overflows and is typically seen attached to water tanks in lofts and from cisterns. Showers usually have a 2-inch pipe.

I tried to fit a 40mm anti-vac trap on a pedestal sink but it wouldnt sit within the hollow of the pedestal. If youre replacing an old drain trap save it so you can ensure you get pipes that are the same size. Other than toothpaste and hair I dont really see other solids being present.

Apply a second bead of silicone around the thread before adding a washer. Theres no real standard controlling the size of the drain hole. Most sources claim that the most common size for the sink drain hole is 1 14 inches although some cite 1 12 inches as the standard.

The sink bowl has a slightly larger diameter than the drain itself. Basin wastes are normally 1¼ BSP 32mm and bathsink wastes are 1½ BSP 40mm. 4 Buy a P-trap installation kit that matches the diameter of the drain.

The sizes are a metric translation relating to the thread of the outlet which is an international standard BSP - British Standard Pipe. When combined with a laundry tub the drain pipe must be a minimum of 2 inches in diameter. Glue a 2-inch sanitary tee to the drain at the stub-out position with its inlet facing the sink.

40mm Used under kitchen sinks and also bathroom showersbaths. In other words the drain size should be smaller than the overall diameter of. I just assumed I would use 2 pipe but Ive also read that 15 may actually be better due to the fact that less solids will build up.