My Skipper is trained to use the swim platform. She used to think the dinghy was "outside" if you get my drift? That got old the first time. That's why I taught her to use the swim deck. It's easy to wash off and works -- at least for us.
I wrote an article on my website about it a while back:
Janice142 article Pet Poop Primer (it's not horrid!)
This is my girl:
Hope the article gives you some ideas jbowlby