What is this extra knob on my kitchen faucet for?

1 comment
  1. It’s a kind of a lock. When it is sideways, the water can get into your dishwasher. When it’s upright, the water is “turned off”. It does not afffect that tap, but the possible other connections. It is best to keep it upright, since there is a smaller risk of leaks, so I would turn it always when you are not using the dishwasher.

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