I will try this when i get off work. The problem with this method is it is not always bouncing around. Roberto suggested i try it in a cup of water and i let it stay in there for a good 30 minutes and it stayed perfectly stable withing .01. Then i put it back in the sump in the same spot, and it stayed at the same pH within the .01 until i left for work, so about 1-1.5 hours. When i woke this morning after not checking it for 8 hours though, it was reading 1.00. So i know something is wrong.cosmith71 wrote:I don't know. I doubt that's your problem, as my probe is near my skimmer and doesn't have issues.
When you're unplugging and testing, are you using a meter, or are you observing the pH reading? Try going by the pH reading only. Meters are iffy sometimes. Start unplugging things and see if the pH reading normalizes.
pH probe giving bad readings
Re: pH probe giving bad readings
Re: pH probe giving bad readings
When i got home this evening, the probe had been in the sump for 10 hours or so and was solidly sitting at 8.2. I checked with the meter and still had the voltage registering about 14v. This seems to fluctuate a bit. I started unplugging things and the probe didn't fluctuate more than .01 the entire time until the only thing plugged in was the pH probe. I also checked with the meter and everytime i unplugged something it seemed to drop about 1v. Everything unplugged it was at 8v. I pulled the pH probe out of the water and the voltage dropped to 3v.
I am still as lost as ever but at least the probe seems to be giving good readings now, not that i ever thought the probe was the problem in the first place.
I will check the pH in the morning again. I need to get the cash together for the wifi adapter asap so i can check it whenever i feel the need. With the wifi i am able to graph the pH as well right? I could be wrong here.
I am still as lost as ever but at least the probe seems to be giving good readings now, not that i ever thought the probe was the problem in the first place.
I will check the pH in the morning again. I need to get the cash together for the wifi adapter asap so i can check it whenever i feel the need. With the wifi i am able to graph the pH as well right? I could be wrong here.
Re: pH probe giving bad readings
Yep, you can graph the pH.
Re: pH probe giving bad readings
So the probe is still giving steady readings. Since i was having trouble with it before should i recalibrate it?
How often should you calibrate the probe?
How often should you calibrate the probe?