Is seems the general consensus is to install some kind of sacrificial anode (zinc) when using a SWG. I have already ordered a zinc plate that fits in the skimmer basket. It was $25 and is probably a good investment.
My question is, I have a small overflow drain in my skimmer that I could use to chase a copper ground through and outside onto an 8ft grounding rod. It would come over the overflow and dangle in the water. Is this a good idea? Will it accomplish the same thing as the sacrificial anode?