Step 4 · Connect Dishwasher to Air Gap

This is the step people usually slow down on. Go finger-tight first, then a quarter turn. No rush — replay the clip whenever it helps.

Locate the drain hose coming from your dishwasher. It is likely connected directly to the garbage disposal's inlet or looped high up under the sink and connected to a drain tailpiece. Place your bucket underneath this connection. Using a screwdriver or nut driver, loosen the hose clamp and disconnect the hose. Be prepared for water to drain out. Route this hose (typically 5/8-inch diameter) to the smaller of the two nipples on the newly installed air gap body. Slide a hose clamp over the hose, push the hose firmly onto the nipple, and tighten the clamp securely.