Well, I gave the waterproofing spray a good long test-out, treating the insides of large plastic totes as per instructions on the can.My conclusion is that it's expensive, arduous to apply and doesn't make any appreciable difference in whether or not the litter sticks to the tote. It also...
I do this with some degree of success. Here is my process: I have two large deep (@2x3x14") clear plastic totes (available at walmart or home dopot or lowes...I don't use regular cat pans; not big or deep enough). I spray the sides and bottom of one thoroughly with Pam and fill it halfway (@8"...