My TFT test kit arrived last week. I have scoured prior forums posts, but still have some questions.
1) I have a 2500 gallon indoor pool. I have added 20 ppm CYA. According to this website's chart, one should keep the free chlorine range form 3 to 5 ppm.
Can someone tell me what is the equivalence of free chlorine levels with 20 ppm of CYA versus free chlorine levels WITHOUT CYA? I have ultraviolet oxidation and the nature 2 filter ( I know the board doesn't like the copper component...) so I would like to keep a lower free chlorine level. The pool manufacture tells me I can keep a Free Chlorine of 1 ppm , but this is without CYA....I don't know how much FC I should maintain now that I have 20 ppm of CYA onboard?
2) What is the difference between muriatic acid and ph down? It seems most people here use muriatic acid. How come?
3) I have a combined chlorine level of 0.5. Does any action need to be taken?
Thanks,
George
1) I have a 2500 gallon indoor pool. I have added 20 ppm CYA. According to this website's chart, one should keep the free chlorine range form 3 to 5 ppm.
Can someone tell me what is the equivalence of free chlorine levels with 20 ppm of CYA versus free chlorine levels WITHOUT CYA? I have ultraviolet oxidation and the nature 2 filter ( I know the board doesn't like the copper component...) so I would like to keep a lower free chlorine level. The pool manufacture tells me I can keep a Free Chlorine of 1 ppm , but this is without CYA....I don't know how much FC I should maintain now that I have 20 ppm of CYA onboard?
2) What is the difference between muriatic acid and ph down? It seems most people here use muriatic acid. How come?
3) I have a combined chlorine level of 0.5. Does any action need to be taken?
Thanks,
George
Last edited by a moderator: