[cogogo]

I read that was the primary concern and wondered about drilling/piercing techniques that could avoid a spark. Spraying water sounds like the dumbest one but some kind of mud applied or something. CNC machines don’t seem to be light shows but i know very little.

[gpm]

My "I have no clue how this works" proposal to minimize the chance of sparking would be to re-purpose a waterjet cutter...

[Waterluvian]

Okay now hear me out. What about we introduce more chemicals and eat through the tank with acid?