[Da Kid]

i agree that a catastrophic explosion would be bad but we plan to put the three barrels inside of a large diameter piece of PVC so even if something does explode it will be contained.

again if someone could chime in on tank sizes(main and secondary) that would be very helpful.

and after looking around i found most of the valves are 24 volt ones. our team isn't the richest(we hope more people will sponsor us one they see this robot) is there a place to get cheap 12 to 24 volt converters. i've looked around and it seems most are around $50 that i've seen.