Hanna Nitrate Checker Filter Washer

[PaulC]

I like the nitrate checker. After I did the test several times, it started to get easy to do quickly. I really like the readout - it's much better than the color comparison type tests.

Unfortunately, I lost the filter assembly washer down the drain. Now I can't run the test. Since neither the washer or the filter assembly is available separately, I'm not sure how to get going again.

Anyone else have the problem, or just me?

 

[Shirak]

Not the first person to mention the o ring going down the drain! My local Ace hardware carries o rings in various sizes and other types of washers in the plumbing/sink section. Maybe they have something that will fit in the filter?

 

[PaulC]

Found that a standard garden hose washer is about the right size; however, they are generally to thick for the filter assembly.

I managed to cross section one with an exacto knife - not an easy task. It worked in the filter assembly and I was able to perform the test.

Hanna, you should put a spare washer in the kit. It is a real hassle if it gets lost.

 

[Viva'sReef]

You can buy the filter assembly separately here

Nitrate Low Range Colorimeter HI781 - Marine Water

Easy and Accurate Nitrate Testing for your Saltwater Aquarium! Get highly accurate results with the HI781 Marine Nitrate Low Range Colorimeter. With a digital read out, there is no more struggling to determine colors visually. This nitrate tester's compact design fits in your pocket or easily...

www.marinedepot.com

 

[PaulC]

I never saw that the filter assembly was available separately - that's good. But the price of $13 seems a bit salty. The whole checker is only $50

 

[Dan_P]

I never saw that the filter assembly was available separately - that's good. But the price of $13 seems a bit salty. The whole checker is only $50

Hanna sells a replacement. Even buying multiple filters the price per unit seems high. Have you Googled soft silicone gasket, o-ring or washer?