E23
Kraus Back-Splashing and Poor Seal at Sink Rim

Kraus garbage disposal causes water to leak from the sink rim when operating at high speed.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Improperly sealed sink flange, Excessive water flow causing splash-back, Shallow sink bowl, Loose mounting assembly

How to Fix / Troubleshooting

Safety First: Turn OFF the disposal before inspecting the sink flange.

  • Step 1 – Check sink flange seal: Inspect around the sink drain opening for water seeping out when the disposal runs. If present, the flange putty seal may be compromised.
  • Step 2 – Tighten mounting ring: Under the sink, tighten the mounting ring to pull the flange more firmly against the sink.
  • Step 3 – Reseal if needed: If tightening does not stop the leak, remove the disposal and reseal the sink flange with fresh plumber’s putty as described in other steps.
  • Step 4 – Adjust water flow: Avoid running the faucet at maximum flow directly into the disposal opening to reduce splash-back.
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Repair Difficulty

Medium 3/5

Required Part

Sink Flange & Mounting Assembly
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