The standard drain size for a washing machine is 2 inches, according to the universal plumbing code. The minimum should be about 1 1/2 inches. Depending on the size of the machine and the type of water used, the wash load capacities can vary by up to 400% or more. For example, if you are using a 2-inch machine, you may be able to get away with a 1-1/4 inch drain.
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Does a dishwasher drain need a trap?
Definitely, anytime you have a opening into a sewer line it must be trapped. The sink will already have a trap if the washer goes into it. It must have been connected to the main sewer if you connected to one of the trunk lines. This is especially important if you want to be able to see the water coming out of your drain when it is empty.
Can a washer and toilet share the same drain?
In some cases, you can drain a washing machine into an existing toilet drain. Adding a toilet to an existing washing machine drain is not a good idea. The washing machine drain lines have a smaller diameter than the toilet drain lines. Water can leak out of the machine and into your home if the toilet is connected to the washer drain.
How far away can a washing machine be from the drain?
If the drain hose is pushed too far into the drain pipe, it can cause Siphoning. The drain hose should be no more than 5″ down into the drain pipe. Washers are designed to be used in conjunction with a Top-Load Washer, and the two should not be installed in the same location. If you are installing a new top-loadwasher, you will need to remove the old one and install the new one.
Why does a washing machine need a standpipe?
If you connect your washer to any other drain line, you increase the risk of your drain becoming blocked. This way, you’ll be able to control the flow of water through the machine, and you won’t have to worry about clogged drains.
