Take a more invasive approach
I bought my C30 with the kenyon 3 brnr stove strapped down in place with no supply canister or lines (prev owner had a mini fridge in its place. I brought th estove home and gave it a thorough cleaning and started looking for a fuel supply setup. in the meantime, I jury-rigged an old coleman lantern base to supply fuel so I could test the stove and learn how to use it in the driveway(no worries about flameouts, etc). Some hard learned lessons:1) don't torque the knobs to the left or you destroy the little burner jet cleaners that are inside the burner assembly. if you can turn the valve more than about a half a turn, or you feel it clicking/binding, you need to pull the burners apart and inspect the damage. key parts consist of a orifice/jet, jet cleaner with little teeth on the side, valve control stem with the little teeth to mate, packing "gland", and gland nut. really simple, nothing to be afraid of. 2) use 3/4" wrench to hold the bottom part of the burner(that comes up thru the pan) to unscrew the burner assembly.3) the "wick" that you see in there after the burner assembly is removed is actually a filter that is inserted an inch or 2 into the tiny copper supply line. 4) that filter may be clogged and have to be extracted to allow adequate flow of fuel. I had to completely disassemble all three burners, remove the pan that they are mounted in, unpipe all the conections below and use various drill bits, fishing hooks, tricked out coat hangers and my air compressor to dig out the 20 years of sediment and solidified filter, and now I've got good fuel flow. I also contacted Kenyon and they are checking to see if they have new filters that I can reinsert to prevent my jets from fouling and new jet cleaners and control stems since all the teeth are stripped off mine.I found a stainless steel fuel pressure vessel at my local marine junkyard and paid $25 for it (they made me take the 2brnr stove with it which is in as good of shape as mine)! Now I have some spare parts. What a deal. Hooked it up and works like a Jenn-Aire!I have a good article on maintenance, use and safety. find it at www.alohaowners.com/pages/manuals/files/wavetek.pdfAs for safety, I keep a simple 20 oz. plastic Coke bottle with a couple of holes punched in the cap in my sink. Water is the flame stopper of choice with alcohol.