Originally Posted by charmalu

Yeah it is a powerful little thing, I did read where someone said it could probably suck a Golf ball through the line.

I think there is something like 14.92" of air pressure per square inch at sea level at 55deg F. So that is quite a bit pushing on the tank with less pressure on the inside. so it will collapse. so if the pressure is equal on both sides the tank will retain it`s shape. Now if the pressure is greater on the inside, the effect will be the opposite, the tank will explode when it over comes the atmospheric pressure. Think I worded that correctly.

Charlie