How To Hook Up Dishwasher Drain Line

Steps for installing a new dishwasher.

How to hook up dishwasher drain line. If an air gap fitting is used there will be two lengths of drain hose. The factory drain hose on the dishwasher which runs from the dishwasher to the smaller of the two tailpieces on the air gap and a 7 8 inch inside diameter hose that runs from the other tailpiece on the air gap to the dishwasher nipple on the garbage disposal. I am planning to go through the floor hook up to the main drain line. Tip the dishwasher upright and slide it into its space.

A dishwasher requires three utility connections to operate. Use a wrench to remove the existing shut off valve on the hot water supply line under the sink. Then get on the floor to connect lines to the dishwasher. An improperly installed dishwasher drain hose can allow waste to enter your dishwasher.

Shut off the water to the kitchen sink. Turn on the water supply inspect for leaks and tighten connections if necessary. The fitting mounts on the back ledge of the sink and has connector nozzles. The electrical connection is most often a 15 or 20 amp dedicated line run from the circuit breaker panel by a licensed electrician.

Connect the electric to the dishwasher. Drain connection with air gap and garbage disposal. Connect the drain hose to the dishwasher using a hose clamp. A water supply a drain line and an electrical hookup.

For most households the dishwasher is a must have appliance that makes cleaning up after meals a breeze. Install the water supply line to the dishwasher elbow. If you re considering replacing or installing a new dishwasher yourself you ll want to be aware of how to hook it up to the drain before you get started. Run the water supply line and the drain hose over to under the sink through the holes you drilled.

In the diagram above right you ll notice that the dishwasher drain. But most people don t think much about how this machine works. In this video this old house plumbing and heating expert richard trethewey hooks up a new dishwasher. Connect the water supply line to the 90 degree fitting using pliers to ensure a tight fit.

Wiring for a dishwasher.