How do you hook up a dishwasher drain?

Connecting a dishwasher to a drain can be done on your own, but there are a few aspects to consider before diving in. If you are replacing an existing drain, it is easiest to copy the same drain hook-ups used on the old dishwasher. If you are installing a new dishwasher for the first time, you will need to install a drain fitting to give the dishwasher a place to drain. There are a few different drain techniques you can pick from:

1.      Drain line connected through an air gap to the garbage disposer:

Connect the trimmed dishwasher drain into the small side of the air gap with a hose clamp. The larger end of the air gap is then connected down the garbage disposal with a rubber hose. Connect both ends of the hose with hose clamps.

2.      Drain line connected through an air gap directly to the drain (no garbage disposal)

Connect the dishwasher drain hose to the small side of the air gap using a hose clamp. Connect the larger side of the air gap to the Y-branch tailpiece on the sink drain with a rubber hose. Connect both ends of the hose using hose clamps.

3.      Drain line configured in a “high loop” to garbage disposer

Pull out as much as the drain hose as possible from behind the dishwasher to create extra hose for the high loop. Pull the drain hose up as high as possible and strap into place under the sink. Connect the drain tube directly into the garbage disposer with hose clamps.

4.      Drain line configured in a “high loop” directly to the drain

Pull out as much as the drain hose as possible from behind the dishwasher and strap into place under the sink. Take the end of the drain line and attach it to the Y-branch tailpiece under the sink and connect with a hose clamp.

Call a licensed plumber for help if needed!

To find out more contact Scott at FXD Plumbing Sydney Inner West or Call Now on 0428 795 498.