I still use quite a bit of muriatic acid. I really have to stay on top of it. Every year I have to lower TA quite a bit and then the usage drops to maybe 1/2 gallon a week instead of 1 gallon a week, but only if I stay on top of it. I'm considering an auto-feed system of some type, and I was researching and came across a CO2 gas system that looks very simple. How would it work with pool chemistry in a SWG system?