We inherited a tray with our cat (adopted him from emigrating friends); it's one of those ones with a roof and an entrance flap.
I like the flap as it contains the smells, but it comes off pretty much every time the cat uses it so we've now just left it off.
Can anyone recommend an enclosed litter tray with a reliable flap? Or an alternative that's as smell-free as possible? Thanks.
(We currently use Catsan with the liners.)