Quote Originally Posted by CarlD View Post
I guess it's like getting a camera in your cell phone. You don't need but you sure love having it!
Carl,
The important point of my post was that pools with SWGs seem to be more stable and have fewer problems in my experience. (And we have a large customer base with varied types of pool, filter, chlorinating combinations.) Pools with SWGs and cartridge filters seem to have the fewest problems (while pools with cartridge filters on trichlor seem to have the most! No surprise here!).