What kind of tray is it? I know my yorkies kinda move while going so they can start off going on the pad but end up finishing on the floor and so, I am constantly cleaning. I bought a bread crate, lined it with carboard so there paws dont go through. I put a pad on top. Will see how that works. They have to step into it so I am figuring that while they are doing there business, they wont step out of the bread crate while going.
I'll let you know how that one goes. Your tray working out ok?
Elaine