If its locked how do I fix it.
I calibrated a ph-80 meter stick thatxwas given to me awhile back.
my tap waters ph is 6.8
There's a few holes in your story bro. Here's a quote from earlier in your thread:
"
Ph is tap water so 7.6 I believe and the run off I wouldn't know. There is no run off, should their be?"
Which is it: 6.8 or 7.6?
If it is 6.8, are you adjusting it to lower it further, or are you watering with a pH of 6.8?
Your pH probe was "given" to you? PH probes are very sensitive instruments and are usually worthless after a year max and will need to be replaced. I'm guessing your meter isn't reliable even if it was calibrated three minutes ago. I would highly suggest replacing it, and calibrating it every two weeks, and even then, replacing it at least once a year.
At the
very least pick up a pH drop test kit just to contrast your meters test results.
Lastly, Yes. You should have some runoff( just a little) when watering your plants, however in dirt it's not a reliable indicator of root zone pH in my opinion because there's barely any contact time with the media itself before it runs out the bottom. Runoff is a more reliable indicator in hydro.