Easily remove lime edges from fittings
Although I do not let my household degenerate directly, limescale edges sometimes form on the faucets because we have very hard water. So far I have always started with the toothbrush (with an old, of course) to remove them.
But you do not need to bother yourself. As with many cleaning agents, it makes sense to observe a certain exposure time. And so I sprinkled baking soda around the faucet, drizzled them with water and covered everything with a cloth.
After about 30 minutes you just have to wipe everything and is happy about a great result.