I’m guessing some kind of grid, not a flat smooth surface.
Oh great. So you’ll have a non slip surface as you stand in ankle deep urine.
Good plan....
L
My Solution.
Raise the floor with a Grated surface.
Install multiple “Pick-ups” and some plumbing lines.
As the Urine puddles under the grate, have it pumped up and misted back onto the P’er.