I have owned my pool for 18 years and used a ozonator for about the first 6 years. I have been using liquid bleach since I found TFP in January and the results are awesome. My pool is about 16,000 gals and averages about 44.5 oz of chlorine daily keeping it at 5ppm. I noticed that many on this forum have SWG systems and so I wonder what can a SWG do for my gunite pool?