Newly calibrated ph prob reads high?

[southerntnreefer]

Setup my apex, and did the ph calibration task. Now I did hook the probe up and do everything else but calibrate first. So it was reading like.3.02 ph etc. I did the calibration task, cleaned it rodi and put it in the tank. How long before it reads correctly? It's reading like 7.69 when my reef angel the short time I had it read between 8.0 and 8.3 depending on time of day. I only had the 2 calibration solutions that shipped with it, so if I messed up I'll have to order from BRS some new ones...

 

[pochaxoo]

Give yourself a few days of them being in the tank before trying any recalibration. Mine is anywhere from .1 to .2 of my actual ph

 

[southerntnreefer]

Give yourself a few days of them being in the tank before trying any recalibration. Mine is anywhere from .1 to .2 of my actual ph

So the fact that it did this may be normal? And come down and balance out? The RA read 8.01 to 8.31 depending on time of day. That's the one thing that worked..... But this reads high, I wasn't sure if I did anything wrong .. if I need to I'll have to order new packets.

 

[SuncrestReef]

See my post about air bubbles trapped inside the probe:

Brand new salinity probe...still worthless

This will be my third Neptune Systems branded double junction salinity probe in about two years. The first one came with my original Apex and worked acceptably well for about a year, then started giving super low readings despite careful calibration. The second probe replaced the first, and it...

www.reef2reef.com

I’m not sure if it impacts the pH probe as much as the salinity probe, but worth a try.

 

[southerntnreefer]

See my post about air bubbles trapped inside the probe:

Brand new salinity probe...still worthless

This will be my third Neptune Systems branded double junction salinity probe in about two years. The first one came with my original Apex and worked acceptably well for about a year, then started giving super low readings despite careful calibration. The second probe replaced the first, and it...

www.reef2reef.com

I’m not sure if it impacts the pH probe as much as the salinity probe, but worth a try.

I ended up realizing i was a moron, and had done the calibration wrong. I re did it manually, and its been rock solid since.