Is there a problem with running a higher chlorine level with a SWG? In my opinion, if there isn't, then why wouldn't you want to be on the safe side and run the chlorine levels according to the "best guess chart"? I don't understand why people are so afraid of chlorine - it has to be in really high levels for it to hurt you, and bacteria are much more harmful. On the other hand if you go by the look of the water, then as soon as it is cloudy, even if there is no cc, then it would make sense that something is wrong, and more chlorine should be added. Most problems I have seen with pools is the lack of adequate chlorine levels. It is really sad that the media (pool companies) have made people so afraid of using too much chlorine.