Neptune PH Probe 10.0 solution not working

[ajremington68]

Tried auto test, now doing manual and 7.0 comes to 700 and the 10.0 comes to 736 which isn’t right as it should be 1000? I threw the packets in my sump for 2 hours and let them get the same temperature, not sure how it could be so far off. Anybody else go through this? Is my probe bad or is the solution bad? I also just got this solution packet from BRs today.

 

[DenverSaltyFarm]

IMO your probe needs to be recalibrated. Usually should be done every few months. after you calibrate then stick your probe back into the solution and it should be accurate

 

[ajremington68]

IMO your probe needs to be recalibrated. Usually should be done every few months. after you calibrate then stick your probe back into the solution and it should be accurate

Trying to recalibrate now cuz I bought it second hand off someone but the calibration values of the packet are matching the reading...

 

[DenverSaltyFarm]

Trying to recalibrate now cuz I bought it second hand off someone but the calibration values of the packet are matching the reading...

if the calibration values are matching the reading then you are good to go

 

[ajremington68]

if the calibration values are matching the reading then you are good to go

Should a 10.0 PH calibration value read 742 in manual calibration?