Well, after flushing the tank that had water obviously in the bottom that was never drained and it holed the tank so it leaked. I used a lot of epoxy sealant to externally seal it and it is holding for now, but I need to know if anybody has had eny experience with using the fuel tank sealing kits that consist of three parts. I have thought about the expense and how it might also plug the fuel intake lines that suck off the bottom of the tank and so here I am asking from experienced users of this tank sealing and improving kits what they have experienced? The corrosion has thinned the bottom near the drain plug enough that it is unusable, so keeping water and condensation out of the tank is most important along with using an additive to help keep any moisture dissolved in the diesel where it will pass harmlessly out of the tank and cause no harm or further corrosion in the future.