CSI pool math vs Taylor watergram

[Bperry]

I’m just finishing a pool SLAM and I thought I’d start tracking my CSI. But there’s a difference between the number in pool math and the Taylor test kit calculator and wondering if I’m doing one of them wrong. If I read the Taylor kit, it says it’s ~+0.07, but the pool math app says it’s -0.11.
Am I reading one of them wrong?

 

[Stoopalini]

Pool Math takes more into consideration than just TA, CH, water temp and pH.

But, if you go to the legacy Pool Math web page, and input only the TA, CH, Temp, and pH numbers ... the CSI result is +0.07; which aligns exactly to the Taylor dial.

But if you then add in your CYA, salt, Borates, etc .... it changes the number.

 

[Bperry]

Pool Math takes more into consideration than just TA, CH, water temp and pH.

But, if you go to the legacy Pool Math web page, and input only the TA, CH, Temp, and pH numbers ... the CSI result is +0.07; which aligns exactly to the Taylor dial.

But if you then add in your CYA, salt, Borates, etc .... it changes the number.

thanks, that’s good news that I wasn’t reading it incorrectly.

 

[Leebo]

When you used the Watergram, did you adjust the TA levels? This post describes in more detail,

CSI - Pool Math or Taylor nomogram?

I've been using the Taylor wheel nomogram that comes with their professional FAS-DPD kit for calculating CSI, and using this to keep it between -0.3 and +0.3. Just by chance, I thought I would try the Pool Math spreadsheet, expecting the same results. Imagine my surprise at seeing some pretty...

www.troublefreepool.com

The math for both the App and legacy webpage should be the same, as long as all the fields are filled the same.

 

[Bperry]

When you used the Watergram, did you adjust the TA levels? This post describes in more detail,

CSI - Pool Math or Taylor nomogram?

I've been using the Taylor wheel nomogram that comes with their professional FAS-DPD kit for calculating CSI, and using this to keep it between -0.3 and +0.3. Just by chance, I thought I would try the Pool Math spreadsheet, expecting the same results. Imagine my surprise at seeing some pretty...

www.troublefreepool.com

The math for both the App and legacy webpage should be the same, as long as all the fields are filled the same.

ah, that’s also one detail (CYA adjustment) I missed.