Pentair IC40 "SUPER CHLORINATION" vs. 100% output setting

brucehenson

Gold Supporter
Nov 27, 2018
61
Taylors/SC
Hello again.

Tested this morning and FC is starting off low (FC 4.6) and I am expecting swimmers and sunshine today. I turned my IC40 up to 100% thinking that I would need to remember to turn it down later. The manual is not clear about what "SUPER CHLORINATION" actually does. Based on what I've read on this forum the IC40 does not have variable output just a percentage of run time.

To the question...is "SUPER CHLORINATION" simply 100% setting with a timer that will return to the percentage that I have selected once the timer expires?

Thanks,
Bruce
 

Jimrahbe

Mod Squad
TFP Expert
LifeTime Supporter
Jul 7, 2014
13,091
Bedford, TX
Bruce,

Yes... :mrgreen: Super chlorination just automatically shuts off...

That said, we never recommend using it, unless you just want to use up your cell faster...

We recommend just adding some Liquid Chlorine.. It is faster and does not use up the chlorine generation capability of the cell..

Almost all U.S. cells only use a timed based output control, not just the IC40..

Thanks,

Jim R.
 
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JoyfulNoise

TFP Expert
Platinum Supporter
May 23, 2015
15,490
Tucson, AZ
YES.

It’s worthless in almost all circumstances and just shortens cell life. Simply use chlorinating liquid if you need to increase your FC quickly.
 
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brucehenson

Gold Supporter
Nov 27, 2018
61
Taylors/SC
Thanks Jim and Matt,

I have some liquid chlorine, just have never opened it, I guess it’s about time. I’ll turn the cell back down and consult Pool Math as to how much I need.
 

brucehenson

Gold Supporter
Nov 27, 2018
61
Taylors/SC
One more question, does the cell work in increments of 20% as selected on the cell itself, or can you choose any percentage from Screen Logic?
 

mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
20,560
Laughlin, NV
With Easytouch / Screenlogic you can pick % settings in increments of 1. You set those within the automation system.
 

brucehenson

Gold Supporter
Nov 27, 2018
61
Taylors/SC
Thanks to everyone for responding so quickly. I have returned my cell to 60% and added 40 ounces of 10% liquid chlorine which should result in 1.2 ppm increase per Pool Math.

What would I do without this awesome resource?

You guys are the best,
Bruce
 

brucehenson

Gold Supporter
Nov 27, 2018
61
Taylors/SC
Boy, Pool Math was dead on. FC is now 6.0 up 1.4 ppm. I didn't measure the Liquid Chlorine out, roughly 1/3 of the gallon jug.

Pool Math predicted 1.2 ppm increase at 40 fluid ounces for my 27,000 gallon pool. The variable's are in the dosage, testing procedure, and pool volume. It is remarkable to get that close!