5/3/2021 Update:
I successfully calibrated 1 of the 2, the El Cheapo PH Pens yesterday afternoon using distilled and the 3 PH test packs that came with the Y&B meter. I could never get the replacement meter I bought recently to calibrate. I dropped out the battery pack hoping to erase anything in memory.
I was able to Cal the original pen, but not the second. That fact right there leads me to believe I am dealing with Junk Equipment. Who knows what the city is doing to this water at the treatment plant also?
After pouring the 3 Gal from RO I let is sit a bit and was reading 5.6 PH, somewhat steady. Put in 3 drops of PH UP (Blue) and my reading was trending down to 4 range. I immediately thought and said out loud, WTF??? F-It!!! …… Added 3 more drops of blue and mixed well and put away the meter out of disgust.
Went ahead and watered both plants to full run off.
I checked my PPM afterwards, thanks for the Explanation @spankyjr1
Wedding Cake: PPM 1000 with a steady 5.8 run off. PH meter is locked on.
Gold Leaf: PPM 1400 with a steady 5.8 Run off. PH meter is locked.
I guess I am going to start checking weather forecast by the old Lick the finger and hold it up in the air method. Why Not? I want to mirror my PH ritual and I feel it is somewhat the same. Guessing!
I then took a reading of the watering solution at the completion of the watering and it was reading a solid 6.8 in the mix bucket. Do I need to add the PH and wait 10-15 minutes to read it? It did not seem that way before…the issues started.
Observations the wedding cake leaves overall not too bad, lots of white Pistils.
The Gold Leaf has had the leaf issue from early on. Lot’s of ambering Pistils.
Am I going to smoke these later? Oh hell yea! With Pleasure.
This point of the Grow, and with not another Grow until the Fall later this year, I am going to limp across the finish line and not purchase the new PH Quality Pen until I am nearing the Fall Grow Kick off.
How long do I need to let the chemicals PH UP and Down sit mixed in the solution before watering? I am still getting fluctuation after the 30 seconds immersed in the feed solution?
Fall Grow I am going in with new PH UP and Down along with that Quality PH Meter.
Can’t make Chicken salad with chicken sh*t equipment.