We have a new pool and got through starting up the SWCG fine - we added CYA, salt started the SWCG at 60% and immediately got chlorine. After some adjusting we were running it at a 20% duty cycle and maintaining the chlorine levels fine. Then many things changed at once:
1. Added more CYA to go from 40 to 60
2. It got warmer so the solar cover is off now
3. Numerous nieces, nephews and assorted others appeared and swimmer load went from none to many
4. Something must be leaking air into the solar array, so we get air bubbles out of the return all the time
So almost immediately the chlorine level dropped to undetectable and we turned up the duty cycle from 20 to 40, then 60, now 80% we are getting some chlorine back but it has not built to the target level yet - though it's only been a few days.
What's normal? I was running the pump 7 hours/day and bumped that up to 10 hours too. If I don't see chlorine build up soon I guess I should inspect the cell for deposits? I mentioned the extra air in the system but I am assuming that with high water flow the air over the cell is OK? I was just wondering what other see when trying to adjust the generator as things change.