Pool math and SWG FC levels


Mar 16, 2019
DeRidder, LA
I just started using the pool math app and it calls for FC of 1-3. I downloaded a lot of docs from the pool school and in the "Water balance for SWG's" it says the target FC level is 4-6. When I open the app it say recommended FC 1-3. Do I just ignore this and change target to 4, 5 or 6? Dumb question I know.


Mod Squad
TFP Expert
LifeTime Supporter
May 19, 2010
Tucson, AZ
Minimums and targets are a function of your CYA level. I think the app includes the minimum in the specified range, but other charts split them out.