I'm still debating SWG or not. The hold back is possible corrosion. At the minimum distance our pool will be about 3' from the house and outdoor patio. Do we need to worry about any corrosion issues on the outside of the home or on or within the outdoor patio? Especially to the patio flood light, outdoor speakers, fan, can lighting, furniture? We will also put a portable fire pit and patio furniture on the deck close to the pool and don't want to have to worry about these as well.