New Pool - Updated Results

[Cayman]

We have a new pool and I have been keeping an eye on test results for several days now. I am wanting to prevent any issues with the new plaster and prevent any calcium scaling. Here are my numbers...

FC: 3.0
CC: 0.0
TC: 3.0
PH: 7.7
TA: 110
CH: 425
Salt: 0 (Finish only 14 days old)
CYA: 30
Borates: 15
Temp: 83 Degress
CSI: 0.43

How we looking? Any thoughts or suggestion to this point?

 

[Texas Splash]

How we looking?

Not too bad. Good testing. You might consider lowering the pH/TA just a bit. Your CSI is just a bit elevated even for new plaster curing. Perhaps bring the pH to about 7.5-7.6 and the TA to around 80-90 for a while. Play with them in PoolMath and you'll see the new CSI. You want the CSI slightly positive (about 0.1) for this first month of curing. After 30 days you can be a little more aggressive with the acid to keep the CSI "slightly" negative (zero to -0.3) to prevent future scale.

With the relatively warmer water, make sure to keep the FC within your target zone as noted on the FC/CYA Levels to prevent algae. Good work.

 

[Cayman]

Thanks for the input! I’ll adjust and get the CSI lower today. I don’t want any issues with calcium.