Garbage disposal runs but water leaks from the dishwasher air gap onto the countertop

Safety first: Turn OFF power to the disposal and dishwasher.

• Step 1 – Inspect air gap: Remove the air gap cap on the sink and check for food debris. Clean out any blockage.
• Step 2 – Check hose from air gap to disposal: Under the sink, remove the hose from the disposal dishwasher inlet and from the air gap. Flush it with water to clear any obstructions.
• Step 3 – Clear disposal inlet: Use a small brush or screwdriver (with power OFF) to clear any debris from the disposal's inlet nipple.
• Step 4 – Reassemble and test: Reconnect the hose with secure clamps, run the dishwasher, and observe the air gap for leaks.

Warning: Do not cap or bypass the air gap; it is a required anti-backflow device in many jurisdictions.