PH very LOW!

[carmexx]

My Reefkeeper PH probe is reading 7.00 after calibrating with high and low solvent. Brand new right out of the box. I finally tested the PH tonight with an Elos kit and I get 8.1. Can I recalibrate the probe with out the test solvent. I should add that I also calibrated my refractometer with 35 ppt fluid and it was off by 3 ppt. So I was actually at 32 ppt when i usually target 35 ppt. It seems that might be the reason for the low ph but I don't know that for sure. I am gonna add some fresh SW to gradually bring it up to 35 ppt.

 

[whippetguy]

Probe might be defective. Mine was.

 

[carmexx]

Hmmm. That's not good. Did they replace it for you? How did you determine it was bad if you don't mind me asking?

 

[whippetguy]

It worked for about a month. I calibrated with another set of lab grade pH solvents and it wouldn't give accurate results. I ended up selling the system (minus the probes) on eBay. I wasn't happy with the whole set up, though.

 

[PSU4ME]

What kind of probe? I had a defective pinpoint one and I called them and they had me send it in and they sent me a new one. No questions asked,

 

[whippetguy]

Reefkeeper

 

[carmexx]

Yeah, A reefkeeper probe. I recalibrated the probe with pinpoint 10 and 7 solution today and it is neck and neck with my elos test kit. I think I calibrated it incorrectly from the beginning. I will keep an eye on it.

 

[carmexx]

sorry guys forgot about this thread...:smack:. The issue was resolved after re calibrating with new solution.