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Thread: Need help with replacing sampled H2O.

  1. #11
    Join Date
    12.08.2020
    Posts
    52

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    I guess I spoke too soon. This morning I took a KH measure and got 9.2 which was 2 higher than any previous readings. I quickly pulled my other test kit and came back with a 7.5 reading which was in the ball park of the KHD as of midnight. I reran the KHD again and got an 8.3 reading and then remeasured and recalibrated the sample tubing. Then I renan the measurements 3 more times and now am at 8.7. So I'm not sure what is going on. Some differences I'm seeing:
    - I am now getting the 10ml in the initial waste and the waste tubing remains full. Before, I was getting only 8ml and the tube was completely empty be the end of the initial waste
    - By moving the sample tube to the display, I can now see that the clearing of the tube for a the next sample doesn't completely clear there is about 2ml still in the tubing. If I remove the tubing from the water whil it clears, it all comes out.

    Please help. I want to be able to trust these readings...

    Something to note, is that this is an AIO tank and doesn't have a sump, so sample tubing runs 6 feet to the tank and goes about 6 inches into the tank. I started dosing Triton which should increase KH, but have seen only about a .2 increase in KH since starting dosing from Saturday. I also did a 10% water change on Sunday which didn't increase KH, it was still at a steady 7.

  2. #12
    Join Date
    09.11.2017
    Posts
    1,476

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    This sounds like a smal amount of fluid is left in the measurement cell because of a problem with the pump calibration and then the measurement is not correct.
    No support or warranty issues over PM! Please send PMs to the moderators only if you have general problems with using the forum! Thanks for helping us to keep the support efficient.
    Kein Support oder Reklamationsabwicklung über PM! Bitte senden Sie an die Moderatoren nur PMs bei allgemeinen Problemen mit der Verwendung des Forums! Danke dass Sie uns dabei helfen, den Support effektiv zu gestalten.

  3. #13
    Join Date
    12.08.2020
    Posts
    52

    Default

    How do I fix this?

  4. #14
    Join Date
    09.11.2017
    Posts
    1,476

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    Check the flowrates of the pumps. For further support, it would be best to open a ticket: https://www.aquariumcomputer.com/sup...ets-enquiries/
    No support or warranty issues over PM! Please send PMs to the moderators only if you have general problems with using the forum! Thanks for helping us to keep the support efficient.
    Kein Support oder Reklamationsabwicklung über PM! Bitte senden Sie an die Moderatoren nur PMs bei allgemeinen Problemen mit der Verwendung des Forums! Danke dass Sie uns dabei helfen, den Support effektiv zu gestalten.

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