Cc > 1 today

[qwertyjjj]

Cya 15
FC 7.2
TC 8.5

400 gallon kiddie pool.
Looks clear but no filtration.

I'm shocking it tonight up to 10 FC since one of our kids had an accident in the water
I cleaned everything up but I don't have filtration other than a net. Without filtration will the CC always climb or will shocking it reduce it?

Fwiw, I change the water every 3-4 weeks as it starts to get cloudy from dirt, soil, etc. then...

 

[Richard320]

CC comes from the reaction of chlorine and pee. Or sweat. Or snot. Or most anything organic.

Bleach and sunlight will neutralize it. Filtration or lack thereof has nothing to do with chemical levels. Except maybe things are mixed better in a pool with a pump.

 

[qwertyjjj]

Is shock of 10ppm enough?
I've read somewhere I should be doing 15xcc level

 

[ajw22]

How do you measure CYA of 15 since CYA test tubes start at 30? The reason I ask is CYA level is important to say what the shock FC level should be. See [FC/CYA][/FC/CYA] chart.

How much CYA did you add and what does PoolMath say your CYA level should be for that amount?

 

[qwertyjjj]

Haven't added any cya through powder, it's got to 15 from chlorine tablets.
Measured with a digital kit and tablet

 

[ajw22]

Well [FC/CYA][/FC/CYA] says a CYA of 20 has a shock FC of 10.

 

[qwertyjjj]

Level was already at 7.2 though.
Should the cc be over 1 even at that high level of FC?

 

[Richard320]

Level was already at 7.2 though.
Should the cc be over 1 even at that high level of FC?

In a perfect world, there would be no CC. But, "one of our kids had an accident in the water." You need to give the bleach and the sun time to work.

 

[qwertyjjj]

Shocked lastnight.
10ppm this morning.
Tonight is 6.5 FC but TC still 7.25 meaning cc of 0.75 (reduced slightly)
Shock again?