Cya

Bigdav

Member
Aug 5, 2018
8
jefferson hills, pa
Good afternoon,
My tf100 kit arrived August 4.
I started shocking august 1 due to algae ,exchanged some water on 6th and added quart of acid ,pool is a little cloudy ,should I drain more to get cya down? Is that why FC is taking awhile to come down?
Thank you
Aug4 tests. Aug 5th. August7
Fc13.5. Fc10. Fc9.
Cc.5. Cc.5. Cc.5
Tc14. Tc10.5. Tc9.5
Ch150. Ch150. Ch175
Ta130. Ta110. Ta100
Cya100. Cya90. Cya80
Ph6.9. Ph7.8. Ph7.5
 

mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
29,619
Laughlin, NV
Welcome to the forum! :handshake:

Did you follow through the entire SLAM Process process? Did you pass all three criteria for a successful SLAM Process? It does not sound like it as you say you have cloudy water. With a CYA of 80 ppm you would need to hold FC of 32 ppm until you pass the three criteria.

Follow the [FC/CYA][/FC/CYA] for your FC target values.

I suggest you read Pool School - ABCs of Pool Water Chemistry and consider reviewing the entire Trouble Free Pool School book.

You may also want to get the Pool Math app.
 

phonedave

Well-known member
May 30, 2012
691
Montville NJ
Good afternoon,
My tf100 kit arrived August 4.
I started shocking august 1 due to algae ,exchanged some water on 6th and added quart of acid ,pool is a little cloudy ,should I drain more to get cya down? Is that why FC is taking awhile to come down?
Thank you
Aug4 tests. Aug 5th. August7
Fc13.5. Fc10. Fc9.
Cc.5. Cc.5. Cc.5
Tc14. Tc10.5. Tc9.5
Ch150. Ch150. Ch175
Ta130. Ta110. Ta100
Cya100. Cya90. Cya80
Ph6.9. Ph7.8. Ph7.5

If you have followed all the instructions for SLAMing a pool, I don't see anything wrong with the rate your FC is dropping

My pool, which is similar in size to yours, used to loose about 0.5 ppm of FC a day when I had it around 6.0 ppm and 80 ppm of CYA.

-dave
 

mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
29,619
Laughlin, NV
Probably a good decision.

- - - Updated - - -

Consider getting rid of the mineral pack in your Nature2 thing. It is adding metals to your water you do not want.

Plan to use liquid chlorine from this point forward for daily maintenance.
 

Bigdav

Member
Aug 5, 2018
8
jefferson hills, pa
Thank you
I dont know if I actually reached 32ppm , my previous test kit only went 5- 10ppm , I got the tf100 on the 4th , but with only a .5 drop inFC each day over 4 days I would think algae is gone
 

mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
29,619
Laughlin, NV
Thank you
I dont know if I actually reached 32ppm , my previous test kit only went 5- 10ppm , I got the tf100 on the 4th , but with only a .5 drop inFC each day over 4 days I would think algae is gone
SLAM Process. Read the article. Once you pass the three criteria you let your FC drop to target levels.