Jess,
Well, your cell is way too small for your pool.. We always recommend a cell that is 2 x the volume of the pool... That said, it will work, but you will need to run a lot longer than 9 hours a day
Do you know what output % your cell is set for??? No matter where it is set now, you need to set it at 100% and maybe we can reduce it later..
An IC40 in your 33K pool, will produce a total of 5.1 ppm of FC per day
with the cell running at 100% That is .21 ppm of FC per hour
A normal pool used between 2 and 4 ppm of FC per day.. So, let's go with 3 ppm of FC usage per day.. 3/.21 is 14.. that means even at 100% output you will have to run your pump for 14 hours...
The fact that you are only running the pump for 9 hours, and I suspect the cell is set to something like 50%, is why you have no chlorine in your pool..
I would test your FC at the same time for several days and see what the trend is.. If the FC is going up, then you can reduce the run time or the output %.. If the FC is going down you will need to increase your run time or increase the output %.. (Unless you are already at 100%)
If you try to adjust your FC every day, it will drive you crazy, as your pool uses a little more or a little less FC each day depending on the weather and pool usage.. So this is what I do...
I try to keep my FC at my "target" or higher.. I do not try to keep my FC between my minimum and my target.. I look at the minimum as a cliff I never want to get close too. This means if it is cloudy, for a day or two and my FC goes up a little, I don't care, as it will soon get sunny and the FC will come down. Doing this means that I don't have to adjust the SWCG output but once a month or less.
See the saltwater section of this chart for reference..
FC/CYA Levels
Thanks,
Jim R.