you wouldn't have a choice but to cap it. it wouldn't be very effective as a carb due to it's placement, and the fact that you'd be using it as a water bong.
Primus Reviewed by Primus on . is it worth the 5 bucks? Bottle Bong adaptor - Two piece I figure if I buy it and hate it, wth who cares, it's just 5 bucks, but if it's as nifty as it looks, I'll be real glad. I'm probably going to buy it soon... also, would it be a better idea to fork up the extra 2 bucks and get the four hose version? Rating: 5