Install a drain hose assembly for your dishwasher.
The dishwasher drain hose takes the dirty water from your dishwasher's wash cycle and drains it into your home's sewer system. These hoses are connected to the nearest drain, which is usually in the kitchen sink. In some installations, the drain hose will be connected to a garbage disposal, while in others it will be connected to a nipple on the side of the tailpiece located just beneath the drain. Dishwasher drain hose assembly can be done by the home handyman with no special tools.
Instructions
1. Plan the route of your dishwasher hose. It will run from the dishwasher to the nearest sink. If you have a garbage disposal, the dishwasher hose attaches to the side. If necessary, make holes in your cabinets with a power drill and spade bit.
2. Turn off the power for the dishwasher, either by unplugging it or turning off the power for the dishwasher at the main circuit.
3. Remove the toe panel from the underside of the dishwasher. Toe panels are located in the bottom front of the dishwasher, just next to the floor, and are usually held in place with Phillips screws.
4. Remove the kick panel located just above the toe panel and beneath the dishwasher door. You may need to open the dishwasher door in order to get at the screws on the top of the kick panel.
5. Connect the dishwasher drain hose to the outlet on the underside of the pump. The pump is located at the bottom of the underside of the dishwasher cabinet. There will be a wiring harness plugged into one side of the pump. If the hose is hard to attach to the pump, squeeze a few drops of dish soap on the inside of the hose before slipping it on the nipple. Secure the hose with a hose clamp.
6. Run the hose to the sink through the cabinets.
7. Connect the end of the hose to the dishwasher tailpiece beneath the sink or the garbage disposal. Secure it with a hose clamp. On an installed disposal, you may need to knock out the plug in the dishwasher connection. If you do not have a dishwasher tailpiece installed in the sink, remove the current tailpiece and replace it with one that has a dishwasher hose connection.
8. Raise the middle portion of the drain hose so it is higher than the exit point on the dishwasher and the inlet on the sink tailpiece or disposal. This will form an air gap that will prevent dirty dishwater from being siphoned back into the city water supply.
9. Turn the power back on for the dishwasher. Replace the toe and kick panels. Run a short load on the dishwasher. Observe the drain hose during the drain cycles and make sure there are no leaks. Tighten the clamps, if needed.
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