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How to clear the water trap under the sink

When water in the sink drains away slowly, it may be time to clear the water trap. Follow the step-by-step instructions below or check out our video, which shows you what to do.

What you need:

A bucket, an old toothbrush, washing-up liquid.


  1. Empty the cupboard under the sink and place a bucket under the water trap.
  2. Unscrew the lower part of the water trap.
  3. Clean the water trap, e.g. using an old toothbrush and a little washing-up liquid. Dry off places that you can reach. Throw away residue in the household waste (do not flush it down the toilet).
  4. Screw on the lower part of the water trap again.
  5. Flush water through the water trap before you take away the bucket to make
    sure the water trap is sealed properly.

If you are unsure about what you need to do, please contact your caretaker.

Latest update February 29, 2024