Washing Machine Drains Into Kitchen Sink

If you re going to connect the washing machine drain hose to the sink drain before the p trap the entire drain including the trap needs to be constructed of a 2 inch pipe.

Washing machine drains into kitchen sink.

It s common for the washing machine to share a drain with a sink and if the laundry room is near the kitchen it could be the kitchen sink. This means that when the washing machine starts releasing water down the drain that is connected to the sink drain the air will actually be trapped inside the main drain pipe. This means they combine at some point on the way to the main sewer line. To start with know that your sink and washing machine drain lines tend to run congruent to each other.

It isn t unusual for the washing machine to share a common drain with a sink. When the washing machine pumps water up into the sink the smell is not to goo. I d definitely recommend being nearby when you re running this setup i usually wandered back into the room when it was draining to check on it and i never. In that case the first place where the air can leave is the vent but if the vent is clogged that means that the air will exit through the sink drain.

The output from a washing machine is under pressure and a standard 1 1 2 inch sink p trap assembly is too small to handle it. Gray water from your washing machine backing up into your sink is one such problem and for many homeowners it can be an ongoing source of annoyance. If you have this problem here is video to show how to easy do the job yourself. Of course that will depend on the size of your sink and capacity of your drain.

Overall the sink seems to give you enough buffer capacity to keep up with a washing machine draining.