Hanna calcium checker

[doubleshot00]

Does anyone use the Hanna calcium checker and can clarify how to use this time. Just seems odd that it’s asking for deionized water would RO water work just fine?

 

[JGT]

Yes, as long as you have a DI cylinder as part of your RO system it's fine.

 

[doubleshot00]

Yes, as long as you have a DI cylinder as part of your RO system it's fine.

Yes i do. Just seemed so weird compared to the Nitrate and phosphate tests.

 

[Shirak]

I don’t have one but when I was looking into it I thought the directions specifically said distilled which isn’t the same as deionzed? There was something I read somewhere that using anything else will give inaccurate results?

 

[JGT]

Nope, says either Deionized or Steam distilled water.

 

[Sean Clark]

I use the Hanna Calcium checker and I buy their water to do my tests with it. I only buy their water to eliminate any possibility of my RODI water as a possible source of errors. This test has a love/hate reputation with a lot of people. I believe that part of the hate comes from improper testing procedures. I personally like mine.

Here is the water that I buy along with my reagent refills:

Deionized Water

Perfect for the Hanna Calcium Checker! Ultra-Pure deionized water that keeps your titration tests accurate and repeatable. The biggest complaint about the Hanna Calcium Checker is when the sample is diluted, if the fresh water source is not pure, it can cause irregular readings and using Hanna's...

www.bulkreefsupply.com

 

[doubleshot00]

Welcome to reef keeping where you have to buy a thing to make a thing work but no body tells you about the thing before hand. My new statement. No wonder why people don't last a full year in this hobby. New signature

 

[Randy Holmes-Farley Verified Community Expert]

The Hanna calcium checker is a poor design that is freakishly sensitive to low levels of calcium in the blank. RO/DI may not always be low enough.

 

[TheHunterYall]

I use RODI and get consistent results with it.