Here's some more wing-nut stuff to play with. A couple years ago I built a 6" tapered tube about 3 ft. long, installed a centered nozzle in it and an igniter from a propane grill. Hooked this up to a propane tank with 12V solenoid valve. Set it up on the beach and pulled the trigger. Got (approx) a 10ft flame plume. I wanted 60ft high plumes but with the valve restrictions in the propane tank and 1/4" pipe fittings on the solenoid. I was disappointed. Next time I modified a 5 Gal. propane tank with a 3/4" pipe outlet and a 3/4" solenoid valve. I fill this tank from a std propane tank each time I "fire" the apparatus. With this I get a 60 ft vertical fire plume ! Scary as hell at night on the beach ! After two firings, everything ice's up and have to wait about an hour to fire it again. I'm about 50 ft. away from the apparatus with hard wired remote control of the ingniter and solenoid. It's good for 6 firing's until the propane pressure gets too low.
I may build one that runs on compressed air and gasoline. more simple, cheaper to operate and won't ice up. I'll start by making a carburetor style Venturi to pull the gas out of a remote tank.
I don't know if this is of any use to anyone but something I always do to avoid getting gasoline IN or ON me when trying to siphon gasoline is this. If you have a pretty good supply of compressed air you can do this to start the siphon action. Put the siphon hose into the tank. At the other end (which you want lower than the gasoline level in the tank). Hold the air nozzle at a 90 degree (or slightly less) to the end of the hose and blow air across the tip of the hose. This creates a Venturi effect and vacuum in the siphon hose and will pull the gasoline up and down the hose to start the siphon action. I have found that if I have to use a larger hose, I cut the tip to get a diagonal shape. Blow the air from your nozzle against the side of the hose that is the highest. This is a rudimentary venturi shape..................How's that for some nuts info ??..........Bruce