According to the Universal Plumbing Code, the standard drain size for a washing machine is 2 inches. The absolute minimum should be about 1 1/2 inches. However, keep in mind that wash load capacities can vary by up to 400% or more depending on the model.
How should a washing machine drain pipe be?
The drain pipe should be a minimum of 1-1/2″ I.D. (inside diameter) to ensure proper draining. The washer drain hose is a 1-1/4″ O.D. (outside diameter). To be confident that no siphoning of water will take place, the drain plumbing must be a minimum of 30″ high for Top Load washers.
Does a washing machine drain line need to be vented?
All plumbing fixtures—including washing machines—must be vented. Improperly vented drains can be sluggish and noisy, and can emit hazardous fumes. Properly vented drains allow the P-trap to do its job: prevent sewer gases from escaping into your home.
What type of pipe is used for washing machine?
Drain and Trap Requirements
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 is the code for washing machine drain pipe? – Related Questions
What size PVC is used for a washer drain?
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.
How high should a washer drain pipe 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. P-trap. P-traps prevent hazardous and potentially flammable sewer gases from entering your home.
Can you use a 90 degree elbow on drain pipe?
It’s a bad plumbing practice to have a hard 90-degree bend in a horizontal drain line that’s buried in a slab or otherwise hidden. If you have to make a 90-degree bend, use two 45-degree fittings and put a small piece of straight pipe between the fittings, if possible.
How much slope does a washer drain pipe need?
The ideal slope of any drain line is ¼ inch per foot of pipe. In other words, for every foot the pipe travels horizontally, it should be dropping ¼ inch vertically.
Does a washing machine drain need to be elevated?
Elevating A Washing Machine Drain Hose
To be safe, you should always raise the drain hose above the level of the washing machine. This will keep any siphoning to a minimum. You may also take other measures to make sure you receive the best drainage possible.
Can you use PEX for a washing machine?
The SharkBite PEX barb washing machine box provides quick and safe water supply shutoff for washing machines and connects to PEX pipe with either a stainless steel clamp or copper crimp ring system.
Are all washing machine water pipes the same?
Do new washing machines use the same hoses and plumbing? All washing machines should use standard sizes and fittings. But there are variances in design across different manufacturers and a few potential problems as discussed in this article. You will always get new fill hoses with a new washing machine.
Can a washing machine drain into 1 1 2 pipe?
Drainage Problems
To drain water properly, a pipe connecting your washing machine and the sewage system must be at least 1-1/2 inches in diameter. Many building codes require you to use pipes that are 2 inches or larger.
Are washing machine hoses NPT?
They are rated burst-proof to 1,500 psi. Fittings are ¾-inch NPT, common to all U.S. washing machines, with a pliable rubber washer for leak-free connections.
Should I use thread tape on washer hoses?
“Hose” Threads
These threads are farther apart from each other than pipe threads, and they screw together and seal against a washer which must be in place in the female fitting to be leak free. No Teflon tape or thread sealant should be applied to hose thread connections.
Can I use a garden hose for my washing machine?
A garden hose has an interior diameter that is smaller than a washing machine hose, so hooking it up directly you would be risking pump burnout (there would be more friction and work on the machine).
How long do steel braided washer hoses last?
How Long do Stainless Steel Braided Hoses Last? A properly installed and applied hose and braid product should be considered a life of building product that will last 20 years.
Do plumbers Replace washing machine hoses?
A professional can install these for you. It might sound simple, but we recommend you get a professional plumber to replace your hoses. The process involves moving the washing machine and making sure that there’s no water in the lines. This is important to avoid water damage.