Calcium build up related to high water temps?

[Frank in FL]

It's been blazing hot here in Fl last few weeks. Heat index pushing 110 and this is causing water temps to hover around 91 deg.
Does high water temps cause calcium to build up faster on your salt cell? If so, do I need to drop the PH below 7.4?
If not, then what else would cause a salt cell to accumulate buildup on it if your chemicals are balanced?
The attached picture is what is starting to form on the top of the cells about 2 weeks from when I last cleaned it.
Ph 7.4
Salt 3200
Alk 80
CYA 60
Calcium 450
Water temp 89-91°

 

[mknauss]

Higher water temperatures raise CSI.
Keep the pH lower and let the TA fall some.

 

[Frank in FL]

Higher water temperatures raise CSI.
Keep the pH lower and let the TA fall some.

Thanks! What do I need to keep the PH at to help combat this?
What is a good TA I need to shoot for?

 

[mknauss]

Just lower the pH to 7.2 when it gets up to 7.6 or so.

Just let TA come down. No lower than 50 ppm.

Are you getting scale flakes out of the returns?

 

[Frank in FL]

Just lower the pH to 7.2 when it gets up to 7.6 or so.

Just let TA come down. No lower than 50 ppm.

Are you getting scale flakes out of the returns?

I have not noticed any scale flakes coming out of the returns or laying on the bottom of the pool.

 

[mknauss]

Then the scale is not that big a deal. That style SWCG may just show it where most of us are oblivious to it.

 

[JamesW]

Get PoolMath and begin to track the CSI.

PoolMath

Pool Care Basics

 

[Frank in FL]

Get PoolMath and begin to track the CSI.

PoolMath

Pool Care Basics

I do. with my numbers, I hover around -.17

 

[JamesW]

I do. with my numbers, I hover around -.17

Does your CSI ever go above 0.0?

 

[Frank in FL]

Does your CSI ever go above 0.0?

It has last year, but this season I made it a point to try and keep it in the negative to help with the calcium build up. Last year I always waited until my pH got to 7.8 or above before I added acid to the pool. This season I test the water every two days ( or right after a bunch of kids are playing in it) for PH and once it gets to about 7.6 I'm dropping it.

 

[JamesW]

The TA at 80 seems a little bit high for the pH readings that you are getting.

Maybe your pH is higher than you think.