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Thread: DOS AWC tubing length question

  1. #1
    Regular Vistor
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    DOS AWC tubing length question

    Good evening guys,

    Im planning on setting up an automatic water change using DOS. So my question is, does the tubing for the waste and fresh saltwater have to be the same length for it to remove and add the same amount of water?


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  2. #2
    Master Control Freak RussM's Avatar
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    No. They can be different lengths.
    Please do not send me PMs with technical questions or requesting assistance - use the forums for Apex help. PM me ONLY if the matter is of a private or personal nature. Thanks.

  3. #3
    Regular Vistor
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    I was told that the length of the tubing mattered because the longer the tube the more water is going to get lost inside the tubing. My fresh water is going to be in the next room a few feet away.

    But if length doesn’t matter then I’ll continue with my plan.

    Thanks for the answer.


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  4. #4
    Frequent Contributor SuncrestReef's Avatar
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    Quote Originally Posted by Tonii87 View Post
    I was told that the length of the tubing mattered because the longer the tube the more water is going to get lost inside the tubing. My fresh water is going to be in the next room a few feet away.

    But if length doesn’t matter then I’ll continue with my plan.

    Thanks for the answer.


    Sent from my iPhone using Tapatalk
    Once the pumps/tubing have been primed, the fluid remains in place in the tubing when not in use. So if the pump draws in 1ml of water, it pushes out 1ml at the other end.

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