@Lilida2000@CrystalHope1979 Interesting. I never replace my 1 box that is used by 2 cats. I just clean mine every night. My trick is to simply be sure to scrape the walls and bottom of the pan very, very thoroughly. When I have pet sitters, I can always tell by the smell when they don't do that.
@intel_spider@altheist2 @BoomerJorgensen @newscientist Indeed, especially with the solar wind kinda preventing any said gas from traveling in any direction towards the sun.... ๐