Miele Improper Double-Sink Drain Configuration

Disposal runs but water backs up into the opposite sink bowl in a double-sink installation.

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.

Possible Causes

Missing or incorrect baffle tee, Clogged cross-connection, Incorrect trap configuration, No high loop on dishwasher hose

Safety first: Turn off power to the disposal before working on plumbing.

Inspect drain configuration: Verify that a proper baffle tee is installed between the two sink bowls to prevent backflow.
Clean cross-connection: Remove and clean the section of pipe connecting the two bowls.
Trap setup: Ensure there is only one P-trap serving both bowls, installed after the baffle tee.
Test operation: Reassemble and run the disposal with water to confirm that water no longer backs up into the other bowl.

Medium 3/5

Baffle Tee Fitting

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