Pipe Size For Washing Machine Drain

The drain hose is connected to a stand pipe attached to the water drainpipe.

Pipe size for washing machine drain.

You only have to remember this the sanitary tee that serves each fixture is the place where the trap arm drain and vent come together. Aside from having a clogged standpipe there are a few other reasons why your washing machine drain might overflow and some of the other most common reasons are. The pipe should be between 18 and 30 inches high from the floor while the p trap should be between 6 and 18 inches from the floor. In your scenario if a fixture that s farther upstream discharges lots of water that rushes by the wye fitting where your washing machine drain pipe connects the vacuum created by the water rushing past the washing machine branch wye will siphon water from your trap.

As a washing machine runs through its cycles it pumps out dirty water to make room for the clean water it needs to rinse your clothes. As with all plumbing fixtures and appliances a washing machine drain pipe must also contain a p trap. When identifying where the drain is you will need to differentiate it from the hot and cold water lines coming into the. The standard for new washing machine drain sizes according to the universal plumbing code is now 2 inches.

It pumps the dirty water through a rear mounted outlet tube fitted with a flexible discharge hose. The piping in the photo on the left represents a laundry sink drain while the photo on the right depicts a washing machine s stand pipe. How a washing machine works. Drain pipe not the proper size.

For instance the minimum pipe diameter for a washing machine drain is pipe with a 1 1 2 inch diameter. Position the trap between 6 and 18 inches above the floor with a standpipe of 18 to 30. What causes washing machine drain to overflow. The flexible hose flows into a drain pipe that connects to the main sewer line.

When combined with a laundry tub the drain pipe must be a minimum of 2 inches in diameter. A washing machine is connected to a drain hose and to hoses that connect to the hot and cold water supply. Kevin the answer is no. The inside diameter of the drain pipe should be a minimum of 1.

In each a is the vent b is the trap arm and c is the drain. Usually the drain of a washing machine is a pipe behind the machine that the hose on the machine pours into.