Hey we played this on a long drinking and gaming stream
I want to say that I love the idea of the game but considering that I was getting drunk, it never even once crossed my mind that you were able to refill water bottles by going up for air. It still doesn't really feel that intuitive to me at all now that I'm sober.
I guess that's my feedback haha Maybe I'll play it again sober and knowing you're supposed to fill the bottles up by going back to the surface constantly
Here's my playthrough if you're interested. It's not very good and I didn't get far at all because like I said, I didn't expect that as a mechanic and thus sort of gave up.
Yours was the 6th game we played and starts around 1:54:03