What ph number to believe

OP
OP
Lionfish hunter

Lionfish hunter

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At 11c, 8.24 to 8.29 for an Alk of 8.5 +/-0.5.
My ph calibration fluids 9.0 from ghl and 10.0 from pinpoint are also not giving the same results. When the 10.01 milwaukee calibration fluids arrive it will likely change these reading slightly.
 

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