Guys,
I tried the aluminum thing yesterday. I had a piece of 3" Alum. tube on the shelf so I thought I would check things out for myself. Since I have been working on tube cells i also had several pieces of ss in diffrent sizes.
I hooked the 3" tube up neg. and inserted a piece of 2-1/2" stainless inside as positive electrode. Catalyst -- I used rain water mixed with a fair amount of vinegar. Started producing instantly, comparable to ss tubes, If the gas it was producing was mostly hydrogen. I would have to say this combination will definitely out produce ss.
someone else give it a try, and verify this.