High Alk and Low pH readings

[BPiers]

Is it possible to have Alkalinity at 15.9 dKH with a pH of 7.49?

 

[bios]

Do you have CA reactor?
co2 low down ph

 

[BPiers]

Yes but it's been off for a few days. Ph is regularly much higher.

 

[bios]

Low water movment and so low oxigenation of the water
And acid action of co2 caused decrease of ph

 

[reeferfoxx]

Is it possible to have Alkalinity at 15.9 dKH with a pH of 7.49?

Test your calcium and magnesium. You might have an imbalance.

 

[BPiers]

Ca is 392 per Hanna checker
This reactor has been on the tank since January. The main tank is borderline overkill with flow. Theres DC12000 main return, MP10 and 2 WAV pumps. Flow in the tank is massive!

 

[bios]

Have you Tray to check kh with toner test

 

[bios]

Other

 

[Roberto Toala]

Ok just to help, I had a similar situation, I had high Alkalinity but my PH would not go above 8.05, and then I had my Impact windows installed, since all windows had to be removed and fresh Air was fully coming in the house my PH now is at 8.2, and even stayed there over night. My plan with this is to get a long air hose and extend it from the skimmer input to the outside at least three times a week for 1 hour, also open up my windows at least two times a week to freshen out the air.

I live in Miami, hence we never turn off our ACs. It rarely goes below 80 here.

 

[Randy Holmes-Farley Verified Community Expert]

Is it possible to have Alkalinity at 15.9 dKH with a pH of 7.49?

I suspect the pH is in error. WHen did you last calibrate the pH meter?