Hi,
I'm trying to understand some of the relationships and have a few questions.
CYA - It's my understand that CYA helps stabilize chlorine so that the sun doesn't eat too much of it. So does that mean that different pools would need different amounts of CYA in order to do the job. I'm thinking of my pool who gets full sun all day until the sun goes down. I think we have about 2 hours of daylight that it gets shade. I would need a higher CYA level than someone who has shade for most of the day. The reason I ask is that my PB put CYA in but my pool wouldn't hold chlorine. He added chlorine and had tabs in the chlorinator but when I tested it, I had 0 FC. We did this for a couple of weeks. He added some more which brought me to 60 and now it's holding chlorine.
Alkalinity/pH - I think Alkalinity is like the gate keeper for pH. Sort of the same relationship as CYA and chlorine. I have a new pool and was told that my pH will want to go high. I'm fighting that now. Alkalinity should be 60-80 but it seems like it's always 90-100. I don't add chemicals everyday but I do test everyday. The pool math app tells me to target my pH to 7.0-7.2 to lower the Alkalinity and then aerate pH back up. I do that but only get an Alkalinity of 90. I think I just need to keep doing that until I hit my target Alkalinity. Can I do that everyday or do I need to wait a couple of days to get a more accurate reading? Also, once I get my Alkalinity down, will it stay there or will I need to keep fighting because it's a new pool? How long before it settles?
Chlorine/pH - This one I'm confused about. Someone on a Facebook group said that if your pH is high that will make your chlorine ineffective. No, I don't believe everything that I read in that group because there's a lot of them giving advice without knowing any of the chemistry or size of the pool. But this is something that I've read a few times and was hoping that someone could verify or debunk it.
I'm trying to understand some of the relationships and have a few questions.
CYA - It's my understand that CYA helps stabilize chlorine so that the sun doesn't eat too much of it. So does that mean that different pools would need different amounts of CYA in order to do the job. I'm thinking of my pool who gets full sun all day until the sun goes down. I think we have about 2 hours of daylight that it gets shade. I would need a higher CYA level than someone who has shade for most of the day. The reason I ask is that my PB put CYA in but my pool wouldn't hold chlorine. He added chlorine and had tabs in the chlorinator but when I tested it, I had 0 FC. We did this for a couple of weeks. He added some more which brought me to 60 and now it's holding chlorine.
Alkalinity/pH - I think Alkalinity is like the gate keeper for pH. Sort of the same relationship as CYA and chlorine. I have a new pool and was told that my pH will want to go high. I'm fighting that now. Alkalinity should be 60-80 but it seems like it's always 90-100. I don't add chemicals everyday but I do test everyday. The pool math app tells me to target my pH to 7.0-7.2 to lower the Alkalinity and then aerate pH back up. I do that but only get an Alkalinity of 90. I think I just need to keep doing that until I hit my target Alkalinity. Can I do that everyday or do I need to wait a couple of days to get a more accurate reading? Also, once I get my Alkalinity down, will it stay there or will I need to keep fighting because it's a new pool? How long before it settles?
Chlorine/pH - This one I'm confused about. Someone on a Facebook group said that if your pH is high that will make your chlorine ineffective. No, I don't believe everything that I read in that group because there's a lot of them giving advice without knowing any of the chemistry or size of the pool. But this is something that I've read a few times and was hoping that someone could verify or debunk it.
