Sink Drain Into Dishwasher

High loop to drain pull as much of the drain hose into the sink cabinet as possible.

Sink drain into dishwasher.

Your sink backing up could be linked to your dishwasher backing up. You should have a loop so the drain line goes above the bottom of the sink before it goes to the dishwasher. Dishwashers usually run through your sink s disposal. It provides a pressure break in the drain line that prevents the possibility of dirty drain water being back siphoned into a dishwasher filled with clean dishes thereby contaminating them.

You may relieve the pressure in the pipes and remove the clog by taking apart the pipes but you must have a bucket under the pipes to catch the trapped water. Generally the loop is attached to the bottom of the countertop itself. Without the loop when water is draining from the sink it will naturally flow down the dish washer line. Sometimes when garbage disposals are installed the drain plug cover is accidentally left on.

The drain hose starts at the bottom of the dishwasher and loops up to a higher point than the kitchen sink drain and then comes down to connect to either the kitchen sink drain or the garbage disposal. If your disposal or sink are clogged then your dishwasher will not drain properly. Make the high loop then attach the end of the hose to the y branch tailpiece using a hose clamp. An air gap on the back of the sink supplies the dishwasher drain line with air so that the water pressure will not drain the dishwasher except on the draining cycle.

Some situations may cause the dishwasher waste water to back up into the kitchen sink instead of flowing out through the kitchen drain lines. This can cause the water to drain improperly from your dishwasher or sink. Clogs may create extra pressure in the sink s pipes forcing the water to flow up the dishwasher s drain line and into the dishwasher. The dishwasher drain hose may not be installed correctly or it may have been accidentally pulled down to a lower center of gravity.

If water from your dishwasher flows into the sink while running the dishwasher the culprit could be an unlikely cause. Pull the dishwasher drain line from the side of the garbage disposal and place it in the bucket. High loop to garbage disposal follow the same instructions as 1 except connect the dishwasher drain hose directly into the garbage disposal.