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  1. #1
    Senior Member jjjtoy's Avatar
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    Aug 2004
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    Looking for Closed Loop Design

    Hi!

    I have 100g tank looking to remove the 4 power heads. I have drilled 4 holes in the top of my arcylic tank. Looking for a good diy plan for a closed loop system.

    Jason

  2. #2
    Senior Member scuba steve's Avatar
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    Nov 2003
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    Do a forum search on closed loop and choose upgrading to a 180 tang_man montreal's it shows his closed loop design... also others will come up.
    Stephen

  3. #3
    Senior Member Dazz's Avatar
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    Sep 2004
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    I did a closed loop that didnt require drilling, and it gave me lots of flow options.

    Heres the link
    http://aquariacanada.com/forums/show...&threadid=4507
    -Dazz

  4. #4
    Senior Member
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    Nov 2003
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    That link that Dazz gave you is to a good one that you can DIY pretty easy.
    Rob

  5. #5
    Senior Member scuba steve's Avatar
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    Nov 2003
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    But since you already have 4 holes drilled , check out some of the forums an you will see some different ones.
    Stephen

  6. #6
    Senior Member
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    Nov 2003
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    If you have 4 holes drilled for the closed loop you need only decide which will be the pickup and then direct the pumps output to the 3 other holes. i would use a Central area hole if there is one for the pickup.
    Rob

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