I am totally new to using an SWG, I have the Aquatrol for above ground pools. return jet mounting. Okay, so it has been up and running since Saturday, my salt level is 3100, well within range according to their instructions. Pool water was fairly balanced when it started, however I can't get the chlorine levels to raise. Should I have to add the old fashioned shock to get the chlorine level up initially? Just curious. I do not know the answer Thanks for any help!