Ok. Here is my question...
I was running the pump 24/7 and the SWG at 45%. During the daytime (lots of sun exposure), my FC would drop down to 0.5 and below. I wanted to run the pump for 14 hours (7am to 9pm), so I did some math and set the SWG at 85% last night. Last night, I test FC, and see 1.0 to 1.5 ish. Today, I test at noonish, and get FC of 0.5 and below. I bumped up the SWG to 95%, and when I tested at 8:30pm tonight, FC sat at 1.0 to 1.5 ish. I should add that sunrise is about 5:15am and sunset is about 8pm.
Now I don't have much more room to go on the SWG (already at 95%). I would hate to have to build up chlorine during the night just to have enough to last me the day the next day. This would suck for a morning swim, as I hate the feel of chlorine in my eyes. This is my first season with SWG, so I don't know if the chlorine feel is the same as a non-SWG pool.
I got my water tested at the pool store this afternoon (TF-100 ordered, on the way), and here are the results:
TC(which I figure is CC):0.5
Now I read in pool school that my CYA should be between 70 and 80... Would that make a difference? I'm gessing yes, since it protects the chlorine from sunlight and I get a lot of that during the day on the pool...
I read on the forum that some guys run their pump 4-5 hours a day and that's all they need for chlorine production for 24 hours! I'll never be able to do that it seems!!! It doesn't make much sense to me since the T-15 cell should be good for a 40k gallon pool, and I got a 13500 gallon pool... And this is only May! What happens in the middle of July?! My SWG will never be able to keep up!
Anyone have a similar scenario willing to share their input? Any insight is much appreciated.