Re: Cylinder Tank
I used JB-weld for the outside of the fill tube (cut out of a 2L peanut tank). then used some stuff called "SEALS ALL" on the inside to seal the fill tube... used CPVC cement meant for chemical applications to glue the end caps and the petcock... i cut the hole for the petcock a little undersized so it actually threaded itself but still used a bit of seals all on the threads to make a good seal. Worked like a charm.
Always remember, wherever you go... there you are