First chemical test results!

SerenityIV

Member
Aug 2, 2019
24
Orlando, FL
Hello folks!

After refilling to bring my CYA level down, here are my first results after a couple of days through the filter.

FC: 7.5
CC: 1.5
pH: 7.8
TA: 140
CH: 275
CYA: 35

Any advice and guidance is greatly appreciated it. My FC does not seem to be coming down. I added 1.5 quarts of 12% bleach yesterday and did not add any today because it does not seem to be dropping much. Thanks in advance! (using TF-100 kit). Rest of info in sig
 

Msch99

Gold Supporter
Bronze Supporter
Jun 11, 2018
327
Verona, MO
Not an expert, but looking pretty good!

FC will come down.

Round your cya to 40 and use that for your FC target.

When PH gets a tad higher, 7.9 or 8, add muriatic acid to lower to around 7.2 or so. Use pool math to calculate amount, this will also lower your TA a bit.
 
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Msch99

Gold Supporter
Bronze Supporter
Jun 11, 2018
327
Verona, MO
Missed the cc. Keep eye on it. Working on organics of some kind. Pool cover on? If so need to take off occasionally to let sun burn off cc. (Burn off not techie term lol, but how I look at it.)
 
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SerenityIV

Member
Aug 2, 2019
24
Orlando, FL
Excellent! I was concerned about my TA and CC. It's been rainy and cloudy the last couple of days here in Orlando, FL. I'm thinking lack of sun. Wasn't sure if I had to SLAM yet based on that CC.
 

Msch99

Gold Supporter
Bronze Supporter
Jun 11, 2018
327
Verona, MO
So after a year here I just found out that cc doesn't indicate algae, only organics if some kind. Lotions, debris etc.

Over night FC loss does though. 2 main things that lower FC, uv rays and algae...and?

Check out OCLT in pool school.
😁
 
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SerenityIV

Member
Aug 2, 2019
24
Orlando, FL
Also, while I'm here.. Is the OTO chlorine test that this kit came witg sufficient enough to check each morning to determine how much bleach to add daily? It would have to be 5 or below though, no? That's kinda tough, haha.
 

frogabog

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LifeTime Supporter
Jul 16, 2010
2,471
Portland, Oregon
Also, while I'm here.. Is the OTO chlorine test that this kit came witg sufficient enough to check each morning to determine how much bleach to add daily? It would have to be 5 or below though, no? That's kinda tough, haha.
If you are using it to check FC before you add chlorine intended to get to target, then sure. There's a good chance you'll be below 5. But it's so hard to color match with the OTO that I can't imagine using it daily. I'm sure I'd get frustrated. The yellow just isn't fun.
 
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Oly

Gold Supporter
Jun 28, 2017
1,095
Fresno, CA
If you are still figuring out your pool system , test as often as you need. It helps to learn how much FC you lose each day and it is good to check and hour after an application to confirm your assumptions. Also good to test the Overnight Chlorine Loss Test if diagnosing FC loss. Over time you will learn your pools trends and will test less often. It is a moving target because there are season differences as well. Have fun with it you are in control now.
 
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SerenityIV

Member
Aug 2, 2019
24
Orlando, FL
Sounds great! Thanks so much for the help. It's great to have this thing where I want it after hours of reading on here. That's what I was thinking.. Once I see the trend, daily testing won't necessarily be needed and I'll know how much chlorine needed per day for the most part. How exciting!
 
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