I am adjusting my pool management based on the information I am finding in here, particularly from pool school and the pool calculator.
Here is my question based on what manuals and labels are telling me:
1. Based on my current CYA level, pool calculator suggests 4-8 ppm of FC with shock level of 16. All labels on the chlorinating materials I own, specifically bags of cal-hypo and jugs of liquid chlorine (which I plan to finish off and go with straight bleach btw) state that it is unsafe to swim until the FC drops to 4 again. Is this warning akin to the (bogus) need to cook your meat to 185 degrees? Is there a gov't mandated statement on the safety of FC levels over 4? Do they not take into account any pool having CYA binding much of the chlorine (although the bags of shock recommend CYA in the pool?
2. The recommended FC level in my goldline aquarite SWG manual is 1-3ppm and that is along with a recommendation that a CYA of 80 is 'best'. That makes no sense to me AT ALL.
So there is a disconnect between the pool forum(s) and commercial preparations and products.
What is the scoop?
Thanks so much!