I typically use 3-4 gals of 8.25% chlorine per week to maintain my pool during very warm weather, and then less when the weather cools. The pool is only open end of April through October. I have been on the fence about an SWG due to the cost for a unit large enough to chlorinate the pool and knowing they only last 3-7 years. The convenience of automated chlorine and not heading to the store every 3 weeks for fresh chlorine is appealing of course. Looking for recommendations for a large unit or 2 smaller units if that's the best way to go.