Ben,

We have not, as a company, experienced enough corrosion damage issues to commit to corrosion studies on AGP, so that is not on engineering radar screen.

In the past, I have suggested rinsing off the bottom and top rails, as these are places where water may collect. As the water evaporates, the salt concentration increases, and will become corrosive due to high levels of salinity. Keep in mind that Sodium Hypochlorite/Bleach usage will also introduce salt to a pool. The same reaction occurs as the water evaporates, yet no one complains of corrosion from the use of bleach. I realize that a salt chlorine generator operates at a higher concentration, the fact is, when the water drips out, and sits on the top cap or bottom rail, whether SCG or bleach, the concentration of salt will be the same as the water evaporates.

Some AGP manufacturers are using resin or polymer top rails, but the bottom rails, which are usually steel or aluminum, should still be occasionally rinsed off.