I’m thinking you’re referring to flushable liners? I use a liner with each cloth diaper. It’s basically a poop catcher that lays over the cloth insert. It’s permeable to urine which will then absorb into the cloth insert. If the child poops, the liner will contain the poop so you can throw the liner with the poop in it into the trash or flush it down the toilet. The liners are typically about as thin as toilet paper but much stronger. I just thrown them in the trash but the companies that make them claim they’re flushable. They probably would be fine to flush but for me it’s easier to throw it in the trash.
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