alosito,
the answer to your question is in the math and the chemistry.
The recommended levels are what they are because the science says that based on your CYA, the FC must be "x" in order to prevent algae and keep the pool sanitary.
The FC reccomendation is a % of the CYA level. Its not just some random number someone came up with. The Low side is 7.5% and the high side is 11.5% of the CYA.
If you are interested in the science and calculations, and how the recommended levels came to be, well here you go!
www.troublefreepool.com
the answer to your question is in the math and the chemistry.
The recommended levels are what they are because the science says that based on your CYA, the FC must be "x" in order to prevent algae and keep the pool sanitary.
The FC reccomendation is a % of the CYA level. Its not just some random number someone came up with. The Low side is 7.5% and the high side is 11.5% of the CYA.
If you are interested in the science and calculations, and how the recommended levels came to be, well here you go!
Pool Water Chemistry
This thread presents my findings so far on pool water chemistry including the following: More Accurate Calcite Saturation Index (CSI) to replace Langelier Saturation Index (LSI) Calculation of ppm HOCl (disinfecting chlorine) at various levels of Total Free Chlorine (FC) and Cyanuric Acid (CYA)...
www.troublefreepool.com
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