No water stains whether with or without detergent. When parking, the mops are rinsed and no water comes out there - it's a separate container. There are plenty of Youtube videos on how to clean the mops. I would advise buying additional mops - a few can always be in the wash.

Thank you for the answer. By "parking" I meant loading.
I'm glad to hear that the experience is so good.

Mop parks on a platform, so it will not wet the floor.

I don't have any water stains after wiping. It may also be due to the detergent that is added to the water, but I can't say what it's like without it. What do you mean by parking? When the vacuum is charging, it stands on the plastic mat from the station, where it doesn't leave any water marks on the floor either. LG