InSinkErator Dishwasher Inlet Connection Leak

Water leaks from the side of the disposal where the dishwasher hose connects

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Possible Causes

Loose or missing hose clamp, Cracked dishwasher inlet nipple on disposal housing, Split or brittle dishwasher drain hose, Improper hose size for inlet barb

How to Fix / Troubleshooting

Safety first: Turn off power to the disposal and dishwasher. Place a towel or pan under the connection.

  • Tighten the clamp: Use a screwdriver or nut driver to tighten the hose clamp at the dishwasher inlet on the InSinkErator housing.
  • Inspect hose: Check the dishwasher drain hose for cracks, splits, or signs of aging near the clamp area. Replace if damaged.
  • Check inlet nipple: Inspect the molded plastic or metal inlet on the disposal for cracks. If cracked, the disposal housing must be replaced.
  • Use correct clamp: Ensure a proper worm-drive stainless clamp is used, not a spring clamp, and that it is positioned behind the barb on the inlet.
  • Test for leaks: Run the dishwasher drain cycle and the sink faucet while observing the connection.
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Repair Difficulty

Easy 2/5

Required Part

Dishwasher Drain Hose
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