hi all back again . have some green in pool

[Watermom]

See how much chlorine loss you have overnight. If you lose no more than 1 ppm of chlorine from sundown one evening until within 2 hours of sunrise the next day, and have no more than 0.5ppm of CC, then you are probably ok.

[airraid1999]

#s virtually same still have slight cc ?

[Watermom]

Hold the chlorine high one more day. If you still have no greater than 1ppm of chlorine loss overnight and if the CC is still no greater than 0.5 and if the water looks good, then let the chlorine drift down and keep it within the correct range based on your CYA.

[airraid1999]

new #s and really worried about fc and cya????
fc-12.5
cc-0.5
ph-7.2
ta-100
cya-25 what to bring this up?
temp-87 what to do about low cya? water looks great just don't understand losing cya? using triclor tabs in floater 1 every 3-4 days??? also should i be worried of fc amount and cc is very minimal just checked at 8:00 p.m.

[aylad]

What's bothering you about the FC? If you're concerned that it's too high, it will drift down on its own. Reading back through the thread, it doesn't appear that you're losing much in the way of FC, and your CC is less than 1.0, so I'd say you're in pretty good shape.

If you want to bring the CYA up, you can either continue using tabs, which will gradually increase it, or if you want it higher now, you can add granular CYA either in an old sock hung in front of a return or by adding to your skimmer and letting it dissolve on your filter. Generally, the only way to lose it is through water loss--backwashing, splashout, etc. HOwever, it is a very subjective test, so unless you're doing it exactly the same way every time, then a 20 ppm difference is reasonable from one test to the other.

[airraid1999]

i was under impression that my fc readings was way high? am i wrong? and the cya has gradually drifted down daily but again the water is sparkling clear just look at last years #s and fc is allot higher than those if they are not high please let me know .
what is ideal readings? and yes i consider that i am doing it very close if not exactly the same each and every time

[aylad]

Your ideal readings for chlorine are determined by your CYA level...see the link in my sig for the "best guess chlorine chart" for more information there. With a CYA around 30 or so ppm, a FC of 12.5 is a little high, but you can swim in it--I just wouldn't wear a brand new bathing suit. And, in a day or so, that level will have dropped down closer to the "recommended ranges" for chlorine for that CYA. But I certainly wouldn't panic over it......