It is hard. I had the same issue so I would ask all the kids go to the bathroom before leaving the playroom and had someone playing that game even his older brother who would come from his school to just use my bathroom so, I started desinfecting as soon as we left the playroom all will be sprayed out. I would take all the towels from the bathroom all ready to just wipe and clean and I have poties outside. So, when they've asked I let them know that our bathroom isnt ready to be used but they can use the potties, they changed their minds right away. Of course they like checking out or playing in the daycare with our toys but now with only potties outside it wasn't fun.