Countertop Dishwasher Drain Hose. There are two hoses, an inlet and drain hose. On the back of the dishwasher there are two ports for each hose to be screwed in.
A problem with the air gap can cause the dishwasher not to drain at all, or it can cause water to leak into the sink or onto the countertop. Always be sure disposer drain plug has been removed before attaching dishwasher drain hose to the disposer. An air gap fitting is a safety device mounted on your sink or countertop, through which the dishwasher hose passes on its way to the drain.
There are two hoses, an inlet and drain hose.
NOTE: It is recommended that the drain.
How to Flush a Dishwasher Drain Hose. A high loop means that the dishwasher drain hose is installed so that there's a U-shaped bend above the point where the hose is connected to the drainage system. Due to backflow and faulty check valve. if clean water coming into your dishwasher when not running, that's most likely an issue with a water inlet valve. if dirty water coming into the dishwasher, thats possibly an issue with faulty check valve on the drain hose.