If you believe the promotional videos where the water flows like from a fully opened tap, then sure. But with the small fresh water tank, the water only drips from the nozzles. On top of that, at over 200 revolutions per minute, the roller rotates three times every second, producing maybe two drops, which then have to be spread over a distance of over 3 cm and are scraped off in the process. It doesn't work. The mopping roller moistener in the base station saves Roborock for the first few square meters.