Ideal Free Chlorine Target

[WLK7381]

Is there such a thing as an "ideal" FC target? For my SWCG plaster pool with CYA at 70 I see various recommendations in TFP articles and posts. I see 7 5% of CYA, 11.5% of CYA, range of 5 to 10 and range of 4-6. TIA.

 

[mknauss]

Welcome to the forum.

What Are My Ideal Pool Levels?

Use our tool to find ideal chemical levels for any swimming pool. Check TFP recommended levels on pH, free chlorine, cyanuric acid, and more.

www.troublefreepool.com

 

[reggiehammond]

The Free Chlorine and Cyanuric Acid Relationship

Managing your cyanuric acid and Free Chlorine levels is key to stabilizing your pool. Learn how these two items affect each other.

www.troublefreepool.com

At CYA 70, your minimum (never want to be there) is 3. Range 5-10.

I run CYA at 7-80 and try to be at 10-12. Why flirt with the low end and algae? There's no drawback to running at the high end with a SWCG.

 

[Bperry]

Is there such a thing as an "ideal" FC target? For my SWCG plaster pool with CYA at 70 I see various recommendations in TFP articles and posts. I see 7 5% of CYA, 11.5% of CYA, range of 5 to 10 and range of 4-6. TIA.

“target” and “ideal” are not specific enough terms to cover it. Every pool consumes a different amount of chlorine each day, has different amounts of stabilizer, and usage. So there’s not a single ideal number. Just measure your CYA and then look up the target range- on the chart referenced above.

 

[proavia]

The "ideal" FC target range level is the one that NEVER EVER allows your FC to get even close to minimum for your CYA at ANY time over the course of 24 hours every single day of the year.

For me and my pool, I just shoot for the high side of the FC target level for my CYA.
I make the conscious choice not to be a slave to my pool.