Quote Originally Posted by God v2.0
a water pipe that could never spill. it would have valves that only allow intake into the chaber from the stem and then one at the mouth piece.
Don't mean to burst your bubble but some companies already have built in check valves in their stems. Considering that you have to take air from the mouth piece, you'll have a hard time creating that effect.....if ya do, you DO have a money maker...GOOD LUCK!!!!!!!

Have a good one and remember us poor folk!:thumbsup: