Saltwater pool, powder-coated ladder. Pool (and ladder, and everything else) was installed 9/2007. A couple of minor rust stains on pool ladder, around tread bolts and rubber bumpers. Also a corrosion problem re: the pilot screw on my SAm. No stray current, but I'm going to connect a magnesium anode to my bonding wire by the equipment pad per ChemGeek's advice. I'm hopeful this will prevent or minimize corrosion problems going forward.
But I'm perplexed about touching-up the rust stains on the ladder. I could use epoxy paint , but don't really want to spend $100/gallon. I could use plain old Rustoleum - sure, it won't last very long (rust spots are submerged) but at least it's a cheap fix I can replicate easily and quickly. Any advice?