Getting Calcium Levels Right

[JimK]

I don't understand how to change the CSI though. Are you saying if I hit all the all numbers the CSI will just fall in line?

CSI is calculated based on the numbers you out in. You can play around with different chem levels and you will see CSI change. For example, try the numbers Toy suggested and see how it affects the CSI number.

[Toybuilder]

CSI is calculated based on the numbers you out in. You can play around with different chem levels and you will see CSI change. For example, try the numbers Toy suggested and see how it affects the CSI number.

What JimK said!

[FormerBromineUser]

Great posts, guys!

Yea, just try inputing different numbers. Like: if I raise my pH, my new CSI is ___. If I raise CH, and raise/lower pH, my CSI is ___. Play with the numbers until something makes sense for your pool.

[FormerBromineUser]

Edit to above: I noticed on your screen shot that you had several variables that you were adjusting. To experiment with CSI, keep your values the same for both current and target. Only change the target on one, maybe two parameters at a time. These are the parameters that matter: pH, TA, CH, CYA, Temp, and includes any Borates and Salt.

[mas985]

The easiest thing to change is PH because it is a one for one change. Increase PH by 0.5 increases CSI by 0.5. TA and CH changes have less impact.

[Toybuilder]

The easiest thing to change is PH because it is a one for one change. Increase PH by 0.5 increases CSI by 0.5. TA and CH changes have less impact.

Well, that's very interesting. Never noticed that before. Learn something new everyday.

[JimK]

I didn't notice that either, though I don't pay close attention to CSI since I have a vinyl lined pool.

[FormerBromineUser]

Let us know if you need help figuring things out. We can play with your numbers if you give us a current set of test values!