How high should a washer drain be off the floor?

In order for the drain hose on your Top Load washer to function properly, the drain must be at least 30″ up from the floor and less than 8 feet high. In order for the drain hose on your Front Load washer to function properly, the drain must be at least 24″ up from the floor and less than 8 feet high.

Can a washing machine drain hose run along the floor?

Yes, the drain hose needs to be elevated and it’s always best to do so at a level that’s higher than the washing machine itself. This will prevent possible siphoning. There are also other steps you can take to ensure that you get the best drainage.

Do washing machines need a floor drain?

The 2017 IRC code does not specifically require floor drains to be installed in laundry rooms, but buildings often include them to provide for emergency drainage or to help with other drainage needs (e.g., relief valves, water heater drainage, condensate drainage, etc.).

How far should washing machine drain hose go into standpipe?

Washing machine manuals typically specify a minimum height of 39” for the entry of the drain hose into the standpipe or faucet box, and a maximum height of 96” (8 feet).
Jun 15, 2018

What is the code for washing machine drain pipe?

According to the Universal Plumbing Code, the standard for washing machine drain size is 2 inches. The P-trap should be between 6 and 18 inches high from the floor, while the pipe should be between 18 and 30 inches high from the floor.

Where does the washer drain pipe go?

The drain hose is usually found on the back of the washer, along with two separate hoses for both cold and hot water supply. The drain hose carries wastewater out of the machine, while the hot and cold water supply hoses bring clean water in.
Sep 23, 2020

Does a washing machine drain hose need to be elevated?

Placing your standpipe too low or too high can cause backflow and overflow. A standpipe that is too low is prone to overflowing from the standpipe itself, while a standpipe that is too high makes the washing machine have to work harder to pump drained water to the standpipe.

Can a washing machine drain be too high?

The washing machine discharge maximum height is 96″ for top and front loading machines. However, installing the extended height above the washing machine could cause that extended height of water to drain back into washing machine.
Jan 30, 2013

Why is my standpipe overflowing?

What Causes Washing Machine Standpipe To Overflow? Some of the most common causes of a washing machine standpipe overflow are clogs in the lines, a major change in water pressure, or a major change in water usage.

Where does a stand pipe go?

The standpipe can be placed next to the washer or in the wall behind the washer. As with all drains, a standpipe must be connected to a P-trap. (Traps, like the one under your kitchen sink, are always filled with water to prevent sewer gas from seeping into your home.)
Nov 26, 2021

How do you install a drain on a washing machine standpipe?

Quote from the video:
Quote from Youtube video: Code the minimum standpoint height is 18 inches. So from coming up from the trap here we need to have an 18 inch piece of pipe. And the maximum that it can be is 30 inches.

Does washer drain need a trap?

If your washing machine drains to a sewer line, such as a city sewer system or a septic tank, it must have a P-trap. A P-trap contains water in its bend. This water is an essential vapor barrier that prevents sewer gas from coming up through the drain line and entering your home.

How long should a washing machine standpipe be?

Laundry standpipes must be tall enough to extend past the washing machine’s overflow line—typically 30-36” in height, or 18”-30” above the trap.

Can a washer and tub share the same drain?

The same rule applies to drainpipes. You can tie in a shower and tub drain to your washing machine drain as long as there is a vented pipe tied into the drain to keep the flow moving along fluidly.

How big should a washer drain pipe be?

A 2-inch drain pipe is required for all washing machines. The former requirement of 1 1/2-inch pipe is not enough to handle the fast drainage of modern washers. As with all plumbing fixtures and appliances, a washing machine drain pipe must also contain a P-trap.

What size PVC is used for a washer drain?


The 1½-inch size is used to capture water that might flow out of a kitchen sink, a bathroom vanity or a tub. The two-inch pipe is commonly used to drain a shower stall or washing machine, and it may be used as a vertical stack for a kitchen sink. A three-inch pipe is what’s used in homes to pipe toilets.

What pipes are needed for a washing machine?

Both these machines need a power supply as well as a water supply and a waste pipe. A washing machine is normally connected to the cold and hot water systems, but quite a few will work with just a cold supply while dishwashers usually only need a cold supply.

Can a washer and sink share a drain?

If you’re joining a washing machine and kitchen sink on the same drain, you may be able to vent them both with a single vent if they are close enough together. If not, you can connect their separate vents before they tie into the main vent stack.