Join Date: Feb 2012
Location: Washington, USA
Thanks for your response! To answer your questions:
gH: 2, maybe 3
No other buffers or pH products. The digital reader was calibrated when I got it.
I suspect, then, that it must be re-calibrated now and then to read properly?
Both readings were taken at the same time.
Edit: Upon re-calibrating the digital reader, it came much closer to the api testkit, reading 6.2-6.3. Thanks Diana!
Last edited by Lee04; 03-22-2013 at 04:28 AM.