Currently I have a 15k SWG pool and the CYA level is appx 35-40 and my FC level is 2.2, the pool looks good, but I noticed on the chart that CYA should be minimum of 60 for a SWG pool, right? If so, should I bump the CYA up and if I bring the CYA to let's say 60, then will I in turn also have to increase and keep my FC level up to 4 as recommended on the chart?