To cap a dishwasher drain on a garbage disposal, you will need to follow these steps:
Turn off the power: Before working on any electrical appliance, ensure that the power supply is turned off. Locate the circuit breaker that controls the dishwasher and turn it off to avoid any accidents.
Locate the dishwasher drain hose: Look under your kitchen sink and find the dishwasher drain hose. It is usually a flexible hose connected to the side of the garbage disposal unit.
Disconnect the drain hose: The dishwasher drain hose is typically connected to a small barbed nipple on the side of the garbage disposal. You can use pliers or a screwdriver to loosen the hose clamp or any other securing mechanism holding the hose in place. Once loose, carefully slide the hose off the nipple.
Obtain a cap or plug: Purchase a dishwasher drain cap or plug from a hardware store or online. These are typically rubber or plastic caps designed to fit securely over the end of the dishwasher drain hose.
Attach the cap: Take the cap or plug and push it onto the end of the dishwasher drain hose, ensuring a tight fit. Some caps may require tightening with a clamp or screw mechanism, while others may be a friction fit. Follow the manufacturer's instructions for securing the cap properly.
Reconnect the drain hose: After capping the dishwasher drain hose, reattach it to the garbage disposal unit. Slide the hose back onto the barbed nipple and secure it with a hose clamp or any other securing mechanism you had removed earlier. Make sure it is tight and properly sealed to prevent any leaks.
Restore power and test: Once you have completed the above steps, turn the power back on to the dishwasher at the circuit breaker. Run a short cycle on the dishwasher and check for any leaks around the capped drain hose. If there are no leaks, your dishwasher drain should now be properly capped.
It's important to note that some local building codes or plumbing regulations may require specific methods for capping the dishwasher drain. If you're uncertain about the process or want to ensure compliance, it's recommended to consult a professional plumber for assistance.