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Thread: Looking at Cor15

  1. #1
    New User
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    Looking at Cor15

    It says that it should ideally be plumbed with 1.25 inch pipe. My return on my 125 gallon are .75 inch fitting. My question is how will that work. If I reduce down before going through the bulkhead will it matter much. This may be the determining factor of buying this pump. Thank you in advance.

  2. #2
    Frequent Contributor zombie's Avatar
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    Dec 2013
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    You can go straight to 3/4" if you want and it will work fine, you will just have a slightly reduced flowrate. If your run is long (more than 3ft) you can get a noticeable flow increase by running 1 or 1.25" all the way up to the tank bulkhead and reducing down. If you plan on using a flow meter, you can run 1" into the flow meter and reduce to 3/4" right before the tank.

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