What does the CH replacement box on PoolCalculator.com mean?

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NoeMoe

New member
Dec 12, 2022
3
Nashville
Sorry if this has been answered before. I searched the forums and couldn't find anything. It comes with the number 300 in it. Do I leave that number there? Do I put a different number in? If so, what number?
Thanks in advance.
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We do not use or support poolcalculator.com

TFP has the PoolMath app. I suggest you download that and then we can assist you.
 
ajw22 said:
We do not use or support poolcalculator.com

TFP has the PoolMath app. I suggest you download that and then we can assist you.
Click to expand...
Oh goodness, thank you! I have that app but was confused which one was associated with this site. After looking at the app I do have a question. I believe I have read on here that CH should be at a minimum of 120. (I have read so much info that I may have it jumbled up in my brain on where I've read it, though.) On the app, it suggests a range of 350-550. Which target should I be shooting for? If it helps, I just refilled the tub to start over and the PH is 7.6, Alk is 50 and CH is 60.
Many thanks and I hope this isn't too confusing.
 
What type of pool are we discussing?

See...

www.troublefreepool.com

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 www.troublefreepool.com
 
The app is primarily for pools.

CH of 100 is all you need for a hot tub yo prevent foaming of the water.
 
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