Recently several people in my family including my dad and I have really gotten into the concept of separating hydrogen out of water through electrolysis. We now have a working unit on our work truck and have found a great electrolyte for it! It's basically ocean water evaporated down from 100 gallons to 1 gallon. In this process 99% of the sodium and most of the chloride precipitate out of the solution. So, we are left with a great electrolyte and you can tell when you see that hydrogen bubble up! We are currently selling these on ebay it's well worth taking a look at. Just type in HHO electrolyte under all items and it will bring you right to it. Hope this helps a lot of you out, it sure has helped us!