pool math app SWG Output and SWG Cell %

I don't see details about the model or cell type of your SWG in your signature to answer your question
 
In Poolmath, select the Hayward T9. It can produce 0.98 lbs of chlorine gas per day.
 
That is the % generating you have set.

With your SWCG, at that setting, with pump running 24 hours, you are adding 2.1 ppm FC to the pool water each day.
 
You need to run the pump long enough to generate the chlorine your pool needs. After that, the pump run time is up to your needs to skim the pool surface or other needs.

What FC does your pool consume each day? If you are unsure, use 3 ppm for now. So at 100% generating, the pump must run for 12 hours to generate 2.9 ppm per day. Start there. Test FC each day at the same time of day and if the FC drops, increase your pump run time. If it increases by too much, decrease your % generating or pump run time.
 

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