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But they look great!
Everything should be tanked with a tiled in-floor tray so any water that gets through the tiles shouldn’t have anywhere to go but the drain anyway. With a fixed screen you can get really nice unobtrusive linear drains so the fussy tile cutting is minimal. My setup didn’t work with that so I’ve got an impey aquadec, but next time around I want to go nuts with something cleaner/more invisible like a unidrain highline custom.
AFAIK you have to have a concealed tray under the tiling regardless, but it just seems to me like a adding a weak point to the design for not enough benefit. My site manager said they were a massive pain in the arse and to avoid if at all possible.