Okay thanks! The pool has always had a high CYA and I've never gone over a FC level of 6ppm, but the pool looks great and no algae. I was worried that a FC level higher than 6 ppm would start to irritate the bathers, and since everything looks fine, I didn't exceed 6 ppm.
Can I get a quick sanity check? Every time I compare my numbers, I think I'm low when they (pool shop) say I'm too high. My kit (Taylor K-2006 FAS-DPD) says to fill to 25ml, add two scoops, add drops, count them, then multiply the drops by 0.2. I did this again today and I only counted 12 drops until the sample tuned clear. That means 2.4 ppm. Seems low, but the water is really clear and I don't usually don't need to add bleach. I don't see any algae anywhere. My generator is currently set at 75% because it's so hot. Am I missing something? 18 ppm won't irritate my party? Just sounds high to me, but if TFP says so, I will follow!