Hi All. I am a new pool owner this year. I have purchased an Inetex 18' x 52" circular above ground pool with a 2100GPH sand filter. This pool holds ~7000 gallons of water. Unfortunately, I had not come across TFP and pool school prior to initially buying the chemicals for it. What I have purchased is a 50lbs bucket of 1" chlorine tablets. After reading pool school, I am super bummed about this loss of money as I really don't want to continue using the tablets because of the eventual CYA issue. I also purchased CalHypo 1lbs shock for the pool. I've shocked / SLAMed 3 times now this year, and done because of the misleading notation of pool stores stating you should shock once a week, after rain, etc.
My first SLAM / Shock application I used 1lbs of CalHypo. The second time I used 3 lbs of CalHypo, and I found my pool unable to lower chlorine levels and had to perform a few sessions of drain/refill to get chlorine back in-line. My third SLAM / shock application occured on 8/26 and I am still off the charts on the FAC taylor test. I performed this SLAM because I did not add the chlorine tablets in time and FAC reached 0ppm. Adding new tablets was not bringing the chlorine level up either. It looks purple vs the red reading @ 10PPM. Another thing I noticed before, and on the last SLAM is that I had what appeared to be mustard algae on the bottom of the pool after application. Running the automatic vacuum appeared to have gotten rid of it and water is currently crystal clear. I'm not sure if this was just some calypo that had collected at the bottom of the pool, or if it was actually algae.
all of my levels/averages are listed below
Chlorine: 3 ppm
PH: 7.4 - 7.5
Alkalinity: 100ppm
Calcium: 225 ppm
CYA: 35 - 40
I performed drain/refill yesterday, just draining pool down to intake and letting fresh water run into the pool while doing so, and I am in the process of doing it again as today, it seems that chlorine levels are still extremely elevated. Below are my current test levels, and with my current CYA level I don't see why this chlorine is not burning off in the pool. There have been no tablets in the pool for 48 hours now.
Chlorine: (not sure, best guess 15 - 20ppm)
PH: 7.4
Alkalinity: 100ppm
Calcium 225 ppm
CYA: 30
I've checked into Pool School and tried to research as much as I could, please, if you are going to refer me to go back there, please specify a specific topic or page to review. In addition, I'm assuming I need to figure out how to get rid of the tablets and calhypo, and just start using liquid chlorine and I'll get away from all of these issues. Looking forward to responses, thank you in advance for reading my novel and providing any input/advice.
My first SLAM / Shock application I used 1lbs of CalHypo. The second time I used 3 lbs of CalHypo, and I found my pool unable to lower chlorine levels and had to perform a few sessions of drain/refill to get chlorine back in-line. My third SLAM / shock application occured on 8/26 and I am still off the charts on the FAC taylor test. I performed this SLAM because I did not add the chlorine tablets in time and FAC reached 0ppm. Adding new tablets was not bringing the chlorine level up either. It looks purple vs the red reading @ 10PPM. Another thing I noticed before, and on the last SLAM is that I had what appeared to be mustard algae on the bottom of the pool after application. Running the automatic vacuum appeared to have gotten rid of it and water is currently crystal clear. I'm not sure if this was just some calypo that had collected at the bottom of the pool, or if it was actually algae.
all of my levels/averages are listed below
Chlorine: 3 ppm
PH: 7.4 - 7.5
Alkalinity: 100ppm
Calcium: 225 ppm
CYA: 35 - 40
I performed drain/refill yesterday, just draining pool down to intake and letting fresh water run into the pool while doing so, and I am in the process of doing it again as today, it seems that chlorine levels are still extremely elevated. Below are my current test levels, and with my current CYA level I don't see why this chlorine is not burning off in the pool. There have been no tablets in the pool for 48 hours now.
Chlorine: (not sure, best guess 15 - 20ppm)
PH: 7.4
Alkalinity: 100ppm
Calcium 225 ppm
CYA: 30
I've checked into Pool School and tried to research as much as I could, please, if you are going to refer me to go back there, please specify a specific topic or page to review. In addition, I'm assuming I need to figure out how to get rid of the tablets and calhypo, and just start using liquid chlorine and I'll get away from all of these issues. Looking forward to responses, thank you in advance for reading my novel and providing any input/advice.