Just took over maintenance of my pool. History of it is I bought the house last summer, hired a random pool guy for the short term as I figured that with a new house and baby at home I wouldn't have time to do everything so the pool was an easy thing to outsource.
So now that he is gone I'm looking at the chemistry and concerned. The FC is way high, 25 or so, with a CYA of 100 or so. PH, TA, and CH all appear to be within reason. This according to my Taylor 2006 kit. I've tested several times over the past week or so and get consistent results. From what I can tell, the only way to lower the CYA is to replace water, approx 50% according to the pool calculator. Is there any downside to such a high CYA besides the proportionally high chlorine levels?
Now on the chlorine side, any way to estimate how long it will take to go from 25 down to the 8-13 the pool calculator suggests for 100 CYA? Weeks? Months? I live in southeast Florida, screened in pool if it matters. We are heading into the rainy season here, so that may help. Or, should I attempt to chemically lower the FC?