I'm curious if others with SWGs are using zinc anodes in their pools? I have no ladders or railings to protect, but I did just have a galvanized pipe plug (factory-installed by Pentair) come blasting out of the heater manifold when it corroded sufficiently to weaken the threads. I see anode units that are plumbed into the system and bonded to the main bonding wire, and zinc weights that are hung in the skimmers. I'm guessing the plumbed unit is more effective. Any experiences or advice would be greatly appreciated. Thanks.