High CSI

[rrself]

I am new to this, so I'm not real sure what I'm doing...

Here are my test results from this evening:
FC: 4
pH: >8
TA: 175
CH: 200
CYA: 30

After entering my results into the pool calculator, it shows that my CSI is 0.82. Way higher than the 0.6 max...

I have been working on getting my TA down to a normal level for the last couple of weeks. I'm not sure, but I believe that once my TA is down, my pH will keep from shooting up above 8 over night.

Any suggestions?

 

[JasonLion]

Welcome to TFP!

Yes, lower TA will help prevent the PH from shooting up so quickly. Try lowering the PH to 7.0 in the evening, if you aren't doing that already. That might be enough to get through the night. Letting the PH get that high with TA high risks calcium scaling.