Cleaning non-slip floor tiles?

[Patriciastaser]

We moved into a house that has non slip tiles on the floor in the en-suite. The surface is very rough - not dissimilar to sandpaper. Whilst initially we thought "good idea" (we are oldsters), the tiles are so far proving impossible to clean and they have shredded all the cloths we have tried to use, trapping bits of cloth in the roughness of the surface. Does anyone have any hints and tips as to what might work, given that my days of hands and knees scrubbing are long gone? We are actually considering having the en suite floor re-tiled but it seems a bit drastic.

Could you use one of those long handled tile scrubbing brushes?

Thanks for replying. Wouldn't that just spread the dirt around? (Not that the floor is very dirty... the en suite isn't used that much...).

Robot vac/mop works

We have these. I hate them. I can’t wait to get rid of them.

When I had these I used a deck brush with a rubber lip on one side. You slosh on some soapy water, scrub, then pull the water off with the lip.