Just for all of those that were interested about the question, not too long ago about ALUMINUM!? I said I had something in the works for a model and would get back to you. As most people know, it has a "very" good conductive value, low corrosive properties, high availabillity (any hardware store), and easy to work with. I now have a 12 plate generator that is working on a 5 watt solar panel (that I test "any" design on, not to waste battery power). However, it has been producing gas for the last hour and and half at a rate at least double of ANY other material I have used in the pst. The best part is, it has NO CORROSION, NO POND SCUM, AND HAS NOW FROTHED OVER THE BRIM ONCE I ADDED ONE TABLE SPOON OF BAKING SODA!!! SOMEONE TELL ME QUICK WHY I DO NOT NEED TO CONNECT THE BUBBLER AND TRY THIS ON MY SVT???????