[jdupay]

I actually did this with my gas tank four years ago. Our 29 Std Coupe had sat in my Mother-in-Laws garage for 20 years and it was rusted top to bottom. I did cycle it through three times letting it soak overnight each time. As I drained it I did make an attempt to strain the fluid through a cloth over the bucket. When completed the interior of my tank looked like a new tank. It worked great! I totally recommend this approach for tank cleaning. It may work even better if your tank is off your car and you can agitate it a bit. After I was done, the mixture was still not saturated and was able to be used to remove rust from other loose parts I had.