There are several outstaning theoretical issues that may negate the viability of the Perpetual H2 system. A few are listed below. If you can think of any more, please write me at matt.bailey@verizon.net

1) What is the depth where the potential energy in a unit of gas equals the amount of energy to produce it?

2) Does the amout of energy required to produce electrolysis increase with pressure? If so, what is the realistic maximum depth to work at?

3) What percentage of the gas will simply disolve back into the water before it reaches the top?

4) If you ignight some of the bubbles at the bottom of pipe, it will convert the H2 and O2 into steam with greater volume -- right? will it then cool and condense befor it gets to the top?