Jeff,
A few more questions before I order a couple of these things from you.

1) What type of solution are you running in the HHO, just water or H2O with some additive? I've heard some guys using baking soda(?) as a catalyst.

2) What is the life expectancy of the electrolysis plates?

3) How much water will the system hold and how often do you need to check/refill?

4) What kind of maintenance does the system require?

5) What is the lead time on getting one?

I'm getting kind of excited about this. Thanks for making this available.