I think i might have a bad pH probe, but it's only 2 months old. I'm having trouble keeping my levels up, yet my monitor reads 6.6. My BR is at approx 50 bpm, and my drip is almost a stream. I've calibrated it numerous times, and it still reads the same. I'm wondering what the difference is between a standard pH probe and one that is lab grade.
Can anyone answer this for me?
Can anyone answer this for me?
