Hi Wayde, I dunno exactly what he used, but as I disassemble the blue Whizzer (it's still raining here), I'll look and see if the tank is ABS or PVC. my customer made the tank at least 6 mo ago, and it's not disolving.
ABS will dissolve in gasoline. PVC will not. I've been trying to come up with a tank to fit under my banana seat, so I just researched that. Pipes are tough to mount and make aesthetically nice. Thought about using a small fire extinguisher too. I'd prefer a box of some kind but it's not worth the time/expense to fabricate one and have yet to find one I can adapt.