Washing Machine Draining Into Bathroom 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.

Washing machine draining into bathroom sink.

This means they combine at some point on the way to the main sewer line. Why does this happen. Some hoses go into a vertical pipe which prevents the water draining back into the machine. The laundry room and bathroom with the sink are adjacent and the washing machine drains into a drain in the wall which i assume merges with the sink drain which is slightly lower.

It sounds like it is blocked. Pull the washing machine out and check the connection where the flexible hose goes into from the washing machine. This is in virginia. 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.

I have tried running a snake into both the sink drain and washer drain but this has not solved the problem. This problem began only after we purchased a new washing machine and i am afraid the machine just pumps. If the only time the sink backs up is when the washing machine is draining there s a good chance that they both empty into a common fitting. To start with know that your sink and washing machine drain lines tend to run congruent to each other.

Both drains may empty into a toilet waste line and be. A my biggest question is whether i can drain the washing machine and a sink into the same 2 drain vent. If the sink drain isn t 2 the only options are 1 send the hose into the sink like it is or 2 run 2 drain to the dwv which would involve cutting up the floor. The thing that got me thinking about this in the first place is that we are thinking of moving the washing machine to a different wall.

Any other option would be a lot more work. 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. 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. I m redoing a bathroom laundry room and have a washing machine and sink that could easily be combined into one drain and vent if it s okay.

Thanks for all the replies. They may also back up when other fixtures are draining.