Hey guys just wanted to see if anyone here has experienced this problem with their Hanna combo meter. So today I went to check the PPM on my hydro buckets and it wouldn't stabilize, bouncing all over the place. It has been working up til today. I went to recalibrate the pH and PPM. The pH calibrated just find. When I tried to calibrate the PPM it wouldn't properly calibrate and it was bouncing all over the place just like before checking my buckets. All my solution still has good dates on them as well. Only thing I have changed is I started storing the meter in the Hanna storage solution, previously I only stored in well water. So I'm leaning towards that had something to do with, somehow. 
