Did a cleaning and calibration on my ph probe today. The health check said that it did need calibration, so after calibrated it, the health check failed and said it needed to calibrate again.
Calibrated again. Health check still failed…
Cleaned and calibrated yet again and the health check failed again.
I replied to my support ticket about this as I’m thinking that the ph probe is bad, which would explain the rusty spots with a 1 month old grobo. When my grobo arrived, the light wouldn’t work correctly and after some troubleshooting, I noticed that the exhaust fan’s plug was ripped off the circuit board and the whole circuit board had been jostled off the standoffs (no nuts on the standoffs either, just a bunch of hot snot aka hot glue.) So I’m guessing this unit had a rough transit.
I keep reading about the ph probe being particularly sensitive and now my guess is that it also got damaged during shipment.
Here’s how the plant is looking now.
She is developing more rusty spots on the tips of the leaves, so I’m thinking the adjustments made 3 days ago are not making much of an impact. Oh, the unit is still going through a lot of bottle 2 acidic, about 3/4" of the bottle, which seems like way too much to me.
On the left is from 2 days ago and the right is just a few moments ago. She still looks like she is burning, especially the first set of leaves underneath.
What do y’all think? Bad probe? How do I keep her healthy until I get a replacement probe?