After a while, the water tank of the Roborock vacuum & mop cleaner got really dirty.

The water filling inlet has a filter, so there's no way to remove the dirt inside of the tank.

The quick solution is to drill a small hole (~10mm) next to the existing one, on top of the tank.

This allows draining the water and debris without being blocked by the filter.
After cleaning the tank, just seal it with a piece of electrical or duck tape.

You can always get a new version of the vacuum cleaner from geekbuying: [ Ссылка ]

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