Hanna checks alkalinity in accurate

[Dj24680]

New battery?

 

[Yellowjacket]

If anyone can screw up a test it is me. I have the Hanna dKH checker and I filled the syringe up to what I thought was the 1 ml line and my results were low compared to Salifert. I noticed the graduated lines went above the 1ml mark and determined that was the actual 1 ml line. I was actually testing with .9 ml instead of 1.0 ml. That could possibly where your error is coming from

 

[Brandonsegula]

Same issue here, large difference between Salifert and Hanna. Salifert reads higher

Which one do you trust

 

[Black Pearl]

I'm still using the Hanna because of its ease and only double check if it gives me a really weird reading. It's about 1.2 dkh difference

 

[Brandonsegula]

I'm still using the Hanna because of its ease and only double check if it gives me a really weird reading. It's about 1.2 dkh difference

That's how mine is also. My corals are driving me nuts I can get my doser to where it's consistently stable. Alk will get high and calcium will get low or vice versa. Pain in my butt

 

[Brandonsegula]

That's how mine is also. My corals are driving me nuts I can get my doser to where it's consistently stable. Alk will get high and calcium will get low or vice versa. Pain in my butt

Cant

 

[DHill6]

I have the old older version, it's always with range of the Elos. I checked it a few times. It reads good also with the check reagent they have. But, I had purchased the new dkh version, it was way off. I sent it back to place of purchase. I'll stick to my older model.