Basement Sink Backing Up From Kitchen Sink. Its 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. Then pour a half cup of salt down both drains followed by boiling water.
Dishwasher Air Gap Dishwasher Air Gap Under Sink Plumbing Dishwasher Installation from www.pinterest.com
Whenever a large volume of water goes down my kitchen sink drain it causes a back up in my basement sink with food particles coming up as well. We live in MA and have had some flooding in the basement so I thought the clogging might be due to debris left from dumping the wet vac contents into the utility sink. 1st about the time the downstairs bathroom sink is full water starts backing up into the kitchen sink.
Over time though food and grease can fall into the air gap and cause blockages.
A steady flow of water from the kitchen faucet does not create this backup. Dishwashers put out a large quantity of water in a short time so the pipes may no longer be able to handle the volume. Then pour a half cup of salt down both drains followed by boiling water. Blocked kitchen sink air gap When air gaps are working correctly they prevent the sink from backing up due to water in the dishwasher.
