In my bathroom, there are four wires in the plug in wall of the water heater, one live wire and one

Updated on Bathroom 2024-09-13
3 answers
  1. Anonymous users2024-01-24

    One hole for two ground wires.

  2. Anonymous users2024-01-23

    Two ground wires together. Leakage protection.

  3. Anonymous users2024-01-22

    Merge grounds.

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