Hanna checker hack!

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thatmanMIKEson

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I'm not sure if anyone has tried this with the Hanna cuvettes, but I was cleaning and drying with r.o water and it seemed to leave some residue on the glass.

But for the past week I have been rinsing thoroughly and then filling the cuvettes with r.o water and storing them full they seem to stay clean and its quicker on my time!

Not sure but I thought I'd share

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ScottR

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I don’t do this but I dip in vinegar every now and then and then rinse is RODI and wipe with a Q tip. But I do rinse in RODI after each use. Readings seem consistent. I also replace my cuvettes every year just as a precaution. Those readings need to be consistent!!! :p
 
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thatmanMIKEson

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+1 on this. I’ve always done this. I’m glad I’m not the only one. ;)
See I was trying to get the air out because the dry spot could make residue there, its almost impossible but now I keep the bubble in the cap because atleast that spot isn't being tested..

I'm still learning the checkers but so far they are all sweet!
 

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FishyFishFish

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I half fill them with tank water, shake them up and throw this first fill away. I then refill and run the tests.

I also have one of their cleaning cloths (which admittedly aren't cheap) in each box and I make sure each cuvette is clean and dry before I put it in the tester, both for accuracy and to protect the testers.
 
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thatmanMIKEson

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Does having the water inside them degrade the lining inside the cap at all? I would think they're not designed with constant moisture in mind..
I'm not sure, time will tell but I think its probably ok for a week between tests, but just in case I always keep new extras.
Another hack for new cuvettes on br.s ;) you can buy two packs of these with caps for cheaper than you can buy 4 caps? I hope this doesn't go away now! 1pk of 2 for 8$ or 4 caps for 21$ ?

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RuuToo

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I think Ryan mentioned it on a brstv video a while back. I remember watching about a week after I picked up the nitrate checker, so I’ve been doing it since day one more or less. It’s useful, but doesn’t make the nitrate checker any easier to use sadly
 

FishyFishFish

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I'm not sure, time will tell but I think its probably ok for a week between tests, but just in case I always keep new extras.
Another hack for new cuvettes on br.s ;) you can buy two packs of these with caps for cheaper than you can buy 4 caps? I hope this doesn't go away now! 1pk of 2 for 8$ or 4 caps for 21$ ?

1618763577231900566044036081727.jpg

I was just going to mention this:

4 caps are now $27. 4 cuvettes are $21 for a total of $48 for for 4 complete cuvettes.

Or you can buy 2 of the 2-packs at $8 each, for a total of $16 :rolleyes:

I'm not aware of any differences and, IMO, Hanna should discontinue the more expensive versions to avoid people being ripped off (or appropriately adjust the prices).
 
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thatmanMIKEson

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well ive notified them of a mistake similar to this before, with barely a thank you or compensation, since it was an order and my time... so this time i hope they dont, but i hope the people{fellow reefers} do so they can get a discount!
 
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thatmanMIKEson

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Been doing the same for years, saw immediately more consistent results when I made the switch. Only difference is I store my vials standing so there is no air bubble below the thread line
Thats the conclusion I stumbled upon too keep it up top! Thank you for the backup
 
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