Hanna LR Nitrate Filter

[Protodad]

Quick question, do you replace the filter after every test? I didn’t see anything in the instructions about how often it needed to be replaced or if it was a one time thing.

 

[Dr RBG]

I would guess you do but not sure

 

[Protodad]

I would guess you do but not sure

That’s what I’m assuming. I’ve seen people say yes but I’m sure it’s just as a best practice.

 

[lafarrow]

I believe the paper filter is a one time use. You have 25 filters and 25 packets. I also wouldn't want the zinc to sit on the filter and dry - not really good filter practice in general.

 

[TonyP]

The paper filter is 1 time use.

 

[Fishingandreefing]

So confusing I just use Salifer

 

[JMetaxas]

I filter paper per test. BTW, the Nitrate reagent refill kit does not include more papers. How idiotic!

 

[Deep]

I filter paper per test. BTW, the Nitrate reagent refill kit does not include more papers. How idiotic!

wow, if thats true then thats truly stupid.

 

[TonyP]

My refill kit came with filter papers. It doesnt list it on the outside of the box but they are in there.

 

[JMetaxas]

Good to know that. I just ordered 50 extra papers. I have about a 50% failure rate with the filtration step.

My refill kit came with filter papers. It doesnt list it on the outside of the box but they are in there.

 

[TonyP]

Good to know that. I just ordered 50 extra papers. I have about a 50% failure rate with the filtration step.

I've been lucky, I've only had 1 failure over the course of 30-ish tests.

 

[JMetaxas]

I take my sweet time placing the filter paper and also the gasket. Perhaps I need to tighten the filter more?

Anyway, I was 2 for 2 this morning testing Nitrates. First result was 1.11ppm and the 2nd 1.34ppm. Pretty darn good.

 

[TonyP]

That's probably the trick. I use a towel to tighten the filter parts.

 

[JMetaxas]

After many struggles I've learned that it's important to really tighten the filter. That seems to have done the trick for me.

 

[Drewbacca]

Are there one or two gaskets in that filter holder? I only see one and it doesnt fit in the bottom piece like I saw in a video.
Thanks

 

[Jon's Reef]

I’ve had 100% success with this method. Push the gasket up into the top part, put the paper in the “cup” of the bottom part (make sure the paper is not up on the lip, because the seal comes from the gasket pushing on that lip). Then just screw it together. Not too tight, just enough to feel the gasket start to compress.

 

[Drewbacca]

Thanks, I'll give it a try. This is the way I thought it was because when I opened the filter for the first time it was wedged up in the top piece, so I figured that's how it was supposed to be, until I looked up the Hanna video.

 

[Drewbacca]

Thanks, I'll give it a try. This is the way I thought it was because when I opened the filter for the first time it was wedged up in the top piece, so I figured that's how it was supposed to be, until I looked up the Hanna video.

So, I thought I posted that yesterday..ha..
Went to post now and saw it still sitting there.
... BUT..HALLE-FREAKIN-LULLA!!
I GOT A READING! AND THIS WAS VERY IMPORTANT ONE BECAUSE I BELIEVE ALL MY PROBLEMS LATELY HAVE STEMMED FROM ZERO NITRATES... AND THATS HARD TO TELL WITH COLOR VISUALS. I GOT A LIL LEAKAGE AND BEARLY GOT 10 ML BUT IT WORKED WITH GASKET ON TOP.. SINCE MINE IS WAY THICKER AND JUST TO BIG A DIAMETER TO FIT IN BOTTOM PIECE. ..AND MAYBE I SHLD GO EVEN SLOWER ON THE PLUNGER. (DROP PER SEC ON THIS)
SO.. I DID NYOS FIRST AND SHOWED A LITTLE TINT .. SO MAYBE 1PPM NITRATE?
BUT WILL ADDITIVES EVEN IN A ZERO SAMPLE REALLY ALLOW IT TO EVER BE PERFECTLY CLEAR? YOU BE THE JUDGE BELOW..
SO MY HANNA READING WAS... 0.02.
I WOULD SAY THATS PRETTY MUCH ZERO.
What other test is gonna show u that?
GONNA ADD Neo Nitro NOW.. AND GET THIS THING BALANCED!
Should I confirm with another test..probably.. do I have the time or emotional strength to do it at all , let alone deal with a possible Inv error... NO.

 

[jcarlding]

Good to know that. I just ordered 50 extra papers. I have about a 50% failure rate with the filtration step.

How do we order more of the paper filters? I can’t find a listing in any of my usual spots

 

[JMetaxas]

I bought them from Marine Depot.

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