Bladder problems in an elderly Black Lab

Honestly, if the diapers don't work, the only way you can save your flooring is by having her be outside more than inside :( It's sad when older dogs have problems like this but it happens with old people too so there's not really a lot you can do - unless, you want to spend the money & cover your floors with a rug or something like that? Either that or you could just put down blankets in different rooms (folded up so they're comfy) & try to encourage her to ONLY lay/sleep on those, that way, if she accidentally has her little accident, it will go on the blanket which can be easily washed. I hope you manage to come up with a solution but unless you can get the diapers to work, you might just have to chase her around with a blanket & make sure at least her back end is over the blanket before she lays!