Do you pre-treat with bac-out or another stain fighter?

Do you pre-soak in a pail?

Or do you just put it in a wet bag and wash like pee soaked diapers? If you use this method, do you end up sunning the diapers?

If you sun your diapers, how often do you do it?

I've been putting poopy diapers in a pail of water for 1-2 days until I was them, but my DH feels it's super gross and needs to stop. So I'm wondering if I can just store them in a wet bag if they will get clean, or if I need to do something else to prevent stains? Thanks!