Cleaning test vials.... - The Planted Tank Forum
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post #1 of 6 (permalink) Old 03-02-2014, 01:12 AM Thread Starter
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Cleaning test vials....

How do you guys clean your test vials after testing your tank water? I just rinse them out with faucet water a couple times and drop them in a cup of distilled water, I'm wondering if there is a proper way to do it to ensure that your getting the most accurate readings possible.
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post #2 of 6 (permalink) Old 03-02-2014, 01:32 AM
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I rinse out with tap water a couple of times.

If it's a test for something the tapwater contains, it's possible some residue may be left behind. So when testing again, I fill the vial halfway with tank water, cover, shake, and empty. Then refill to the test line and test normally. I think that should take care of it for the hobby-grade tests, as they're just not that sensitive.
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post #3 of 6 (permalink) Old 03-02-2014, 04:37 AM
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If you don't rinse them out, and let the test solution sit in them for a while,
you may need to swab out the inside with a tissue.

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post #4 of 6 (permalink) Old 03-02-2014, 04:54 AM
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Ditto Dark Cobra.
I have descent enough tap water that a thorough rinse is all they need.

Then, rinse with the material to be tested right before use.
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post #5 of 6 (permalink) Old 03-02-2014, 07:41 PM
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i grab two individual (tank only) cups or so out of the tank i'm testing, and rinse the tube out in one first. test with water from the other, then just rinse under the tap before i put the tube away.
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post #6 of 6 (permalink) Old 03-03-2014, 09:59 PM
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I agree with pretty much what everyone up above said.

Our test kits aren't very accurate, and I doubt many people bother to try and calibrate them (I certainly don't).

For that low level of precision, rinsing with tap water after the test, and with tankwater before the test should be sufficient.
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