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Five days have passed. The piece of aluminum has become very small, but there is still a reasonable production of gas going on. Still, the production seems less than at the first day. This could indicate that the KOH is also consumed in this reaction. The top of the glass jar has become covered with white powder, this is probably KOH that has settled on the jar via solution vapor. Anyway - this is interesting stuff

If someone is good in chemistry, he might explain what is happening in this reaction better
What I notice is that electrolysis above a certain voltage breaks down the electrodes. And the problem being low voltage produces little gas.
I am currently entertaining the idea to use radiant energy ( hi freq and hi volts ) to charge up water like a capacitor. Apply high voltage to the water with only one electrode. Then in a separate current loop apply pulsed dc at a low voltage and hope i can find a frequency that will break the water down with less that normal current flow.
Dodeca