Hello,
I am experiencing some low FC high CC problem, and pool store's suggestions didn't seem to help, so on my journey of reading everything on the internet. At last decided to get a TF100 test kit, and an API ammonia test kit, and hopefully TFP can help!
Got a 26,000 gallon pool, opened it on 7/4, not green at all and usual cloudiness, added 4 gallons of 12.5% liquid shock running filter 24/7.
Tested water at pool store on 7/6, test result:
FC 0.69, TC 7.58, PH 7.4, TA 63, CYA 7
Pool store said that's a chlorine lock so I did 5lbs of none chlorine shock... for the next few days, added alkanility, added cyanuric acid, 2 more session of 6lbs of none chlorine shock....
Did a couple more water tests at pool store in that time period, TA raised to 83 then dropped to 75, saw CYA level raised to 42 then dropped to 17. The whole time big differences between FC < 1and TC > 8. Ph fairly stable around 7.5.
Nothing makes sense to me!
The water is now very clear, although the wall feels a little slimy. No algae, although some part of the pool liner looks yellowish, but that appeared last year, which also had a bout of FC/TT chlorine differences, but got stable after using the none chlorine shock, I think that was the reason.
Now I read about ammonia, and how bacteria might convert CYA to ammonia, and it could also consume chlorine, so I want to follow the SLAM process and see if I can get the chlorine right again.
Here are the results from the TF100 and API tests:
FC 4.5, (CC 1) TC 5.5, PH 7.6, TA 120, CYA < 20, AMMONIA > 8.
Is any of these making any sense to anyone?
Would the SLAM process be able to fix the chlorine?
Thank you,
Pak
I am experiencing some low FC high CC problem, and pool store's suggestions didn't seem to help, so on my journey of reading everything on the internet. At last decided to get a TF100 test kit, and an API ammonia test kit, and hopefully TFP can help!
Got a 26,000 gallon pool, opened it on 7/4, not green at all and usual cloudiness, added 4 gallons of 12.5% liquid shock running filter 24/7.
Tested water at pool store on 7/6, test result:
FC 0.69, TC 7.58, PH 7.4, TA 63, CYA 7
Pool store said that's a chlorine lock so I did 5lbs of none chlorine shock... for the next few days, added alkanility, added cyanuric acid, 2 more session of 6lbs of none chlorine shock....
Did a couple more water tests at pool store in that time period, TA raised to 83 then dropped to 75, saw CYA level raised to 42 then dropped to 17. The whole time big differences between FC < 1and TC > 8. Ph fairly stable around 7.5.
Nothing makes sense to me!
The water is now very clear, although the wall feels a little slimy. No algae, although some part of the pool liner looks yellowish, but that appeared last year, which also had a bout of FC/TT chlorine differences, but got stable after using the none chlorine shock, I think that was the reason.
Now I read about ammonia, and how bacteria might convert CYA to ammonia, and it could also consume chlorine, so I want to follow the SLAM process and see if I can get the chlorine right again.
Here are the results from the TF100 and API tests:
FC 4.5, (CC 1) TC 5.5, PH 7.6, TA 120, CYA < 20, AMMONIA > 8.
Is any of these making any sense to anyone?
Would the SLAM process be able to fix the chlorine?
Thank you,
Pak