I have read the posts regarding cleaning rust from the inside of the tank. I didn't see any that discussed the option of using a basic rust disolver like Krud Kutter (phosphoroc acid). Couldn't I just put two cans of cheap Krud Kutter in the tank, shake it around with either bolts or fish tank rocks in it for 30-60 minutes, rinse with water, rinse with fuel as needed, and fill tank with gas? Is there a reason I shouldn't use a basic liquid rust solvent? Thanks.