How long do Hanna checkers last?

[saltyhog]

Or maybe a better question, how often do you need to replace them.

I worry a bit about my PO4 levels since bottoming it out 8 months ago led to the dino outbreak from Hades. My Hanna ULR phosphate checker was about 4 years old. Since they are not expensive I bought a replacement. When it arrived I checked my PO4 with both and it was almost identical.

I was pleasantly surprised and decided to keep my 4 yo alk checker and see how it compares to my Triton test I just sent off.

 

[Diesel]

My Hanna checker is about 6 years old last time I checked, need to check the checker if it still checks as I didn’t check the checker nor my water in almost 2 years.

Great topic.

 

[ZoWhat]

IMO Hannas are about as accurate as the digital temp displayed on a Bank sign on the corner of the street....lol

IMO Hannas are quick but your selling out on driptest accuracy

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[Diesel]

IMO Hannas are about as accurate as the digital temp displayed on a Bank sign on the corner of the street....lol

IMO Hannas are quick but your selling out on driptest accuracy

.

I hear ya.

Blowing some steam here.