Pool Light Mounting Ring Rusting


Well-known member
May 25, 2016
Richardson, TX
Hey y'all. I hope someone has some insight for me as to why my mounting ring for my pool light is rusting. In February, I changed the old broken 300w 120v light to a 12v Pentair Amerlite. The light's trim ring is fine, but for some reason the mounting ring is now rusting. Anyone know why?