So this is a galvanized steel tower which was painted? That's the reason the paint is peeling! Galvanizing requires a light sandblast before coating...industry practice.
Full removal would include:
Full containment of structure, abrasive blast, apply zinc rich coating followed by epoxy or a...
Here is a product that is designed for acid storage in carbon steel tanks.
http://www.tnemec.com/product/view/Series-365-TankArmor
100% solids novolac epoxy. Our company has used this with success in the past. Corrosion in these tanks can be very accelerated, so a very dense, thick film...
