If you're interested in getting a professional's take on Litter and Litter Pans - here is Dr. Pierson's blog and her info: http://www.catinfo.org/?link=litterbox
I don't have a problem with using bleach - I just make sure the box is thoroughly rinsed and then dry before I put new litter into the pan. I actually take advantage of our hot desert sun to dry the pan, too.
As I was reading Dr. Pierson's information I saw that she now has a picture of a tote with a hole cut in it, similar to what I do. The tote size that she pictures is 19.5" wide x 29.5" long x 19" high ( it is a 39 gallon container. I have one for the outside enclosure that is that large, but the totes inside the house are about 22" high x 171/2" long and 15" wide - probably closer to the 18 gallon tote size. I also cut the hole on the longer side when the space allows for it.
I don't have a problem with using bleach - I just make sure the box is thoroughly rinsed and then dry before I put new litter into the pan. I actually take advantage of our hot desert sun to dry the pan, too.
As I was reading Dr. Pierson's information I saw that she now has a picture of a tote with a hole cut in it, similar to what I do. The tote size that she pictures is 19.5" wide x 29.5" long x 19" high ( it is a 39 gallon container. I have one for the outside enclosure that is that large, but the totes inside the house are about 22" high x 171/2" long and 15" wide - probably closer to the 18 gallon tote size. I also cut the hole on the longer side when the space allows for it.