This was asked not too long ago, but a search came up with nothing. How do you fill water skins using the FF Real Thirst mod and Cobl?

Generally from my experience you can only fill them at wells found in settlements. Press use whilst looking at the well and it should fill all your waterskins.

Ah, ok. I haven't been to a well at a settlement yet. Thanks.

You have to have Cobl, FF real thirst & FF real thirst Cobl. Then look at the well hit activate & you can take a drink or fill water skins. You can also hold (by dropping & using grab key) a water skin in a water fall to fill it.