I have an above ground pool that I use for dogs. The ramp for the dogs to exit the pool is an aluminum truck ramp. The pool water, I assume it is the chlorine in the water, causes a white, raised corrosion on the ramp where it is submerged. What causes the corrosion and how can I fix it? Could I use something like Rhino Liner on the ramp to prevent it or would that deteriorate in the water and cause pump/filter issues?