First time readings

JayK

Well-known member
Feb 24, 2019
88
St. Louis
Okay so I hope I am doing this right.

22,000 gal pool (roughly will know exactly once water bill shows up.
EcoFinish Pool
SWG
Been going one week. Was shocked by pool Co I believe on day they started it up
Water Temp between 78 - 80f
SWG output is 50% Salt level (According to intelliclor) is 3500
Water "looks" perfect. :)

Test
Free Clor: 2.6
Combined Clor: 3
PH 7.6
TA: 50
CH: 90
CYA:20 or a little less

So.. Now what? :)
 

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jblizzle

Mod Squad
TFP Expert
LifeTime Supporter
May 19, 2010
42,327
Tucson, AZ
What test kit are you using?
Are you sure your CC is 3.0? That is really high, although who knows what they "shocked" your pool with
You also need to raise your CYA.
 

JayK

Well-known member
Feb 24, 2019
88
St. Louis
I am using the 2006C and it's very possible I did it wrong. BUT I did write it all down. It took 13 drops of the 871 to get it clear. Then it took 2 drops of the next one (Don't remember what they was called)

Also I am on top of the CYA, working on that now.

Did I do the math wrong (I would not be surprised)
 

jblizzle

Mod Squad
TFP Expert
LifeTime Supporter
May 19, 2010
42,327
Tucson, AZ
Did you use 25ml of water or 10ml of water?
Guessing 25ml and then each drop is 0.2ppm ... so 13 drops = 2.6ppm and 2 drops for the CC would be 0.4ppm (no idea how you came up with 3)

Get enough CYA dissolving to initially get you to about 60ppm.
Add enough bleach to get your FC up to the required level for that CYA (FC/CYA Chart)
And then start to dial in the SWG output.

Oh and switch to using 10ml of water so each drop is 0.5ppm to save reagents
Add your test kit in your signature, too :goodjob:
 

jmikeb

Gold Supporter
Aug 4, 2017
212
stillwater oklahoma
nice pool.
assuming a water temp of 88 and you increase cya to 60, your csi is very negative (-1.00).
use the pool math app and play with the ph, ta and ch until the csi becomes more neutral
 

duraleigh

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In The Industry
Apr 1, 2007
31,955
Sebring, Florida
For most pools, CSI is inconsequential and/or irrelevant. OP, can you tell us the CH of your fill water?
 

duraleigh

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Apr 1, 2007
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So OP's question..."Now what?" Answer....Go swimming! Keep your parameters within the guideline we teach and enjoy your Summer.

Now, a bit of a thread hi-jack. Those of you that frequent this forum a lot know I am not a big fan of CSI. I believe it has a place for some pool owners who have high Calcium fill water (and some other less frequent issues). There is a tendency for some responders from the desert Southwest to prescribe CSI to all the rest of us because they have to deal with it daily.

If OP had a plaster surface (turns out he didn't, but that's not really the point), he simply needed to bring his CH up into the suggested 250-400 range and keep it there. He would then never experience the leaching of calcium from his pool surface and he would also never have to consider CSI.

CSI is a tool for those who CAN NOT stay within the guidelines we suggest (mostly from fill water) and the rest of us (a big majority) simply can ignore it.

Simplicity is paramount in what TFP teaches. Introducing CSI into a scenario where it is irrelevant only adds complexity.
 

jblizzle

Mod Squad
TFP Expert
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May 19, 2010
42,327
Tucson, AZ
If the signature was correct, then the plaster bottom was in danger and something needed addressed based on the CSI. The solution you proposed of raising the CH is of course correct, but this discussion would be better outside of hijacking the OP.
 
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JayK

Well-known member
Feb 24, 2019
88
St. Louis
Need to go to bed but will take care of sig and respond tomorrow morning! Thanks for all the feedback!
 

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