Hannah alk checker...

[jhart85]

Im getting readings of 6.3 on a Hannah checker on freshly mixed aqua forest reef salt. salinity is tested at 35 with refractometer and 1.0266 with a tropic Marin hydrometer. the icp on the salt mix comes back at 8.4 and my salifert test it at 8.3. has anyone else experienced a 2dkh discrepancy with the Hannah tester? thanks guys

 

[Uncle99]

Im getting readings of 6.3 on a Hannah checker on freshly mixed aqua forest reef salt. salinity is tested at 35 with refractometer and 1.0266 with a tropic Marin hydrometer. the icp on the salt mix comes back at 8.4 and my salifert test it at 8.3. has anyone else experienced a 2dkh discrepancy with the Hannah tester? thanks guys

Mine sits on a shelf.
Just could not trust it versus my refractometer.

 

[jhart85]

Mine sits on a shelf.
Just could not trust it versus my refractometer.

that's why im reaching out, im struggling with discrepancies all across the board including fauna Marin icp results. when I kept it simple I kept acros when I advanced the hobby im rtn/stn master now

 

[Uncle99]

that's why im reaching out, im struggling with discrepancies all across the board including fauna Marin icp results. when I kept it simple I kept acros when I advanced the hobby im rtn/stn master now

Is your issue with the Hanna Alk or Salinity checker?
If it’s the Alk, mines been great for years, but the Salinity, CA, MG checkers all I could never seem to trust.

 

[jhart85]

Is your issue with the Hanna Alk or Salinity checker?
If it’s the Alk, mines been great for years, but the Salinity, CA, MG checkers all I could never seem to trust.

It’s with the alk it’s coming back low

 

[Uncle99]

It’s with the alk it’s coming back low

Then I think it’s low, but considering you have other tests resulting in more of a what’s expected, perhaps the reagent is done.

No question with that checker in weekly test exceeding 5 years, provided salinity is 35ppt and MG is 1350-1400ppm.

I did get some weird results when my MG fell too low at 1200ppm.

 

[jhart85]

Then I think it’s low.

No question with that checker in weekly test exceeding 5 years.

Icp for that salt mix and salifert test at 8.3/8.4 respectfully at 35ppt. My trident was calibrated with Hannah and I’ve got burnt tips with a salifert reading of 11.1 and a Hannah of 8.6 which led to the detective work