View attachment 14831 I searched everywhere for a solution to my rusty tank. I found chemicals. I found kits. Lots of time consuming mumbo jumbo. I finally found a better solution thanks to some guy on youtube. You will need fishtank gravel. Its at Walmart for 3.89, WD 40, duct tape, a dryer and a tub stopper (also at Walmart) that matches the size of the gas cap so you can plug it up. Make sure its big enough to not fall in and not so small that it will come off. Or anything like this. Do not use the gas cap. The dust may block the vapor release. A vacuum. SEE PICTURES 1.) Have the tank off, remove the petcocks.... rinse it out with water, pour some alcohol in it to dry faster. Or whatever method you prefer. Just make sure there is no gas and it is completely dry. 2.) place duct tape over where the petcock(s) mounted. Make sure it sticks really well over it, you don't want the gravel you are about to put in it to get out 3.) pour the gravel in the tank. Plug the tank off with the tub stopper. Place the duct tape over the plug to make sure it doesn't come off. 3.) wrap the tank in a blanket. Then place the wrapped gas tank in a trash bag to double make sure gravel doesn't get out, so as one of your taped off holes comes undone. 4. Place the wrapped tank in you dryer. Wedge some pillows in the gaps, so it is snug and will not move of bang around. 5. turn the dryer on fluff (no heat) for 30-80 minutes. 6. Remove the tank. Remove the bag and blanket. Shake the gravel out into the bag. You will have trouble getting the last bit of gravel out. Take your vaccum hose and hold it to an opening on the tank and work it around until you get it out. If your vaccum has reverse. Blow the tank out. Or use an air comppessor to blow the stuff out. Rinse it out with gas and fog it with WD40 or fill it up. But make sure its reallllly rinsed out good. Bam. Bare metal clean tank. Fast. Cheap. Easy. No harsh chemicals. No smelly vingar. No games.