Opening Levels

[Martha_D]

FC 1.5
CC .5
TA 90
CH 230
CYA 60
PH 8.2

I am starting the shock process. My question is, should I lower the PH first??

thanks!!

 

[Smykowski]

Definitely. 8.2 is the top of the scale, so who knows how high it actually is. Target 7.2, but you may want to do it in a couple of doses so you don't overshoot.

 

[Richard320]

Absolutely. And once it's good, don't bother testing pH again until the shock process is complete and FC has dropped below 10. High chlorine reacts with the reagent and shifts the color, so it won't be accurate.

How does the water look right now? You know we like pictures....

 

[Martha_D]

Ok. What if i already started shocking because i got anxious and went ahead and shocked??? Because thats what I did. bad???

 

[Martha_D]

By the way the water looks slightly cloudy but overall pretty good!! I hope i didnt screw up too bad

 

[Richard320]

By the way the water looks slightly cloudy but overall pretty good!! I hope i didnt screw up too bad

Well, chlorine works better at lower pH, so if it was me, I'd try to fix it.

If that reading was taken before you added all that chlorine, then wait at least an hour after adding bleach, and add enough acid to get you down to maybe 7.6. Give that a while to mix, then resume. You can fine tune later. If that reading is after dumping the bleach. you'll just have to fix it after.

 

[Martha_D]

No it was before adding bleach. Ok i will try to adjust. Thanks!