Waste Maid Backflow Leak from Dishwasher Connection

Garbage disposal runs but water leaks only when the dishwasher is draining

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Possible Causes

Loose dishwasher hose clamp, Cracked dishwasher hose, Blocked disposal discharge causing back pressure, Air gap or high loop missing causing siphon issues

How to Fix / Troubleshooting

Safety First: Turn OFF power to both appliances and do not run the dishwasher until the leak is fixed.

  • Observe during drain: Run a short dishwasher cycle and watch under the sink during the drain phase to pinpoint the leak.
  • Tighten or replace clamp: Snug the clamp at the Waste Maid dishwasher inlet. Replace with a new stainless clamp if corroded.
  • Inspect hose: Replace the dishwasher drain hose if any cracks or pinholes are found.
  • Check disposal discharge: Ensure the disposal discharge and P-trap are not partially blocked, which can force water back out the dishwasher connection.
  • Install high loop or air gap: Ensure the dishwasher hose has a high loop under the counter or an air gap to prevent backflow.
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Repair Difficulty

Easy 2/5

Required Part

Dishwasher Drain Hose
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