Use a Zipper. Replace that rear hole
glide with a slotted and make certain you have 2 weight plates on top.
It should be laid out in sections that are about 12' wide, so just clean normally. If it isn't heavily soiled, you won't have any issues.
@Papa John did some astroturf recently I think, so maybe he can chime in. And didn't our hispanic veteran here watch over his crew cleaning an astroturf football field with those black pellets in it?
I always turn down the rubber floors, so give us some detail on how you plan to clean it.