Bubba,
Each pool is a little different, so you've just got to try it and see...
I'm not a good example, because at this time of the year I run my pump 24/7 at 1200 RPM, and have my IC40 set to 25%. I like to keep my FC at about 6 or so, and never want it to get below 4 ppm.
So based upon that, you could run your pump for 12 hours a day at 50%, or 6 hours a day at 100%. Any combination to keep your FC where it needs to be.
How are you currently testing your pool water? This is really the most important part of the TFP process..
Jim R.