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Thread: DDR Issue

  1. #1
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    DDR Issue

    I have recently switched to the DOS/DDR set up for dosing, set up everything according to the manual, and assumed things were fine, as it calibrated fine, pulled fluid through the tubing and it showed in fusion the DDR was dispensing fluid. As it turns out, nothing was actually being pushed out (even though fusion was accounting for the missing fluid through the sensors). It seems it is not pulling the fluid through the hard plastic inside the DDR, but if I put the tubing directly into the resevoir, it works just fine.

    1. Has anyone else had issues like this?
    2. Is there something I can check/do to fix this? (I would hate to think I can't actually use the product as it was designed)

    Thanks in advance for the help/feedback.

  2. #2
    Frequent Contributor zombie's Avatar
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    Try reseating the acrylic tube.

    Sent from my SM-G965U using Tapatalk

  3. #3
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    Quote Originally Posted by zombie View Post
    Try reseating the acrylic tube.

    Sent from my SM-G965U using Tapatalk
    Not sure I know what that entails? can you elaborate?

  4. #4
    Frequent Contributor zombie's Avatar
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    Quote Originally Posted by acesfull44 View Post
    Not sure I know what that entails? can you elaborate?
    Pull the lid off and jam the tube in further

    Sent from my SM-G965U using Tapatalk

  5. #5
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    I have had issues with the DOS pulling the Red Sea ALK part through acrylic tubes. I substituted a pc of the regular flexible tubing and the problem went away. The Calcium portion for some reason (viscosity) did not suffer the same issues and pulls up the acrylic tubing just fine.

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