Two methods as other have said,

1st menthod well documented here; is to paint epoxy on the floor/walls

2nd is hacking. We found out our toilets in 2nd floor were leaking. Went with hacking. Cost like 3k+
Had to drive to Melaka for the tiles as the old ones were shattered in the process.

We did this because we really dislike the look/feel of epoxy especially in the bathroom. Feels like a hospital and kinda too slippery. The tiles we choose have a rough surface.

No budget, go diy. But there's probably clear epoxy if you want to preserve the look of your old tiles, just the surface will be different though

We hacked the toilet because of this

Clear?

Just don't wash it with harsh chems/gosok to hard after this. Probably won't last as long as epoxy

Any pics?

Silica sand will make less slippery

Yuppp

My place, 2 bathroom on 2nd floor more than 4k

Roof different ady....