Hello from East Tennessee, near Knoxville and the Smoky Mountains! I have had a pool since 2008 and a hot tub since 2007. I would like to better understand how to maintain them myself. I'm tired of having to rely on others and sometimes be scammed by those trying to sell you something. My pool was originally installed with a SWG. I replace the cell in 2017. When we open our pool in Spring of 2018, the cell and some other piping was leaking. Perhaps from frozen pipes, but I do not think it was an accident. But that is a whole other story. Anyway, we operated it as a chlorine pool last summer. But I was looking into either going back with a SWG or perhaps one of the newer "systems". A local pool place was trying to sell me on a mineral system. That is how I found this forum. I wanted to investigate it before I went with something different. I have been pretty happy with my salt water pool, so I was leery of going with something else. But they made it sound pretty sweet. Sure glad I found this forum. Sounds like I need to stick with the SWG.