Re: Algae is driving me nuts
You will never get rid of the algae until you take your chlorine up to the shock levels in the "best guess chart" and keep them there until the chlorine holds overnight. You will have to check the chlorine 3x a day and take it back to shock levels. You will not damage your liner at these levels that are compatable with your cya. The high cya combines with the chlorine and the chlorine is not as effective as it is when the cya is low. Here is the chart. The most important thing is to keep the chlorine consistant. Try not to let it drop during the day, and give it a dose late at night before you go to bed. Keep the pump running 24/7, and brush the pool everyday. Here is the chart:
Use the info in this chart to help you figure out what levels of chlorine you need to maintain in your pool based on the amount of CYA (cyanuric acid, also called stabilizer) that you have in your pool. (FC = free chlorine)
Stabilizer . . . . . . Min. FC . . . . Max FC . . . 'Shock' FC
=> 0 ppm . . . . . . . 1 ppm . . . . . 3 ppm . . . . 10 ppm
=> 10 - 20 ppm . . . . 2 ppm . . . . . 5 ppm . . . . 12 ppm
=> 30 - 50 ppm . . . . 3 ppm . . . . . 6 ppm . . . . 15 ppm
=> 60 - 90 ppm . . . . 5 ppm . . . . . 10 ppm . . .. 20 ppm
=> 100 - 200 ppm . . . 8 ppm . . . . . 15 ppm . . .. 25 ppm
As you can see the minimum your chlorine should be is 5ppms - you really need to get it up to 20 and keep it there until it holds overnight.
Feel free to ask any questions you have
Northeast PA
16'x32' kidney 16K gal IG fiberglass pool; Bleach; Hayward 200lb sand filter; Hayward pump; 24hrs; Pf200; well; summer: none; winter: mesh; ; PF:7.5
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