Is there a shelf life on opened pH up/down? My general hydroponics pH down is actually causing the pH to rise drastically in my solution. I did a test with just a cup of water and a few drops and I shit you not the pH down made the pH go up like 2 points. Obviously tossing the bottle, but has anyone else encountered this? Thanks Sent from my iPhone using Grasscity Forum
I have the opposite Problem?? Lol Ph is too Low... I was told I wouldnt need Ph up?? Good to know about the LemonWsg Sent from my SM-A520W using Tapatalk
Update: my pH reader has gone bad somehow... sometime after changing the solution out and still getting a high reading I finally decided to use the pH test tube and drops, which gave me a low 5.0-high 4's number. Sent from my iPhone using Grasscity Forum
If you are using general hydroponics ph kit and the bottle has orange liquid then it ph down if its blue its up. Hopefully mislabeled is all it is.
It could just be your pH meter change the battery and calibrate it do it once a month Sent from my Moto Z (2) using Grasscity Forum mobile app
If you decide to calibrate your meter, make sure to use distilled or RO water! The first time I calibrated I wasn't thinking and used tap water. Had a few days of weird readings before I realized the mistake