Testing Issues with ALK

[Paulairduck]

my current results

Mag 1320 salifert
Cal 360 salifert

and my issue with my alk parameter

salifert 11.5 dkh
Elos 8.0 dkh
Lamotte 8.3 dkh

why the difference? and which one should I believe!?!?!?!?!:idea:

 

[dan-in-gr]

Hi, I use the Hanna Alk Checker, well worth the $50. Easy to use and accurate.

 

[kichimark]

+1 on the hanna. I am loving it.

How old are the kits?

 

[Midnightsun]

+3 on the Hanna.

 

[Paulairduck]

everybody loves the hanna

I love my hanna po4 tester

 

[pwwfish]

I had the same problem with Salifert alk test. Always 3.5dkh higher compare to Elos and Lamotte tests. I believe that Lamotte is the most accurate.

 

[bertoni]

Welcome to the wonder world of water testing. We get a lot of reports about test inconsistencies. If you're worried, there's a DIY test method available for alkalinity, but it requires a high-precision pH meter that accepts pH 4 and 7 calibration solutions.

 

[Dog boy Dave]

Mix up new water. Research what alk that brand water should test at. Test the new water with your test ket and use the water as your standard.