This is such a basic question, but I don't think I've ever seen it addressed. . . how do you know when to replace your scumbug?
I rinse mine out on a semi-regular basis. It's a bit stained around the edges, but it's not falling apart or anything.
Advice would be appreciated. TIA!

I rinse mine out on a semi-regular basis. It's a bit stained around the edges, but it's not falling apart or anything.
Advice would be appreciated. TIA!