Well, don't lump ALL SWCGs together. The Triopure is made for the salt and ozone to work together. This means that the cell is not the same as a stand along salt system, which would be a larger cell. Triopure is designed for the ozone and chlorine to both be working within it's normal operating conditions in order to maintain your pool properly. The thing is how do you really tell if the ozone is working properly?