Low flow in pump

Discussion in 'Filters, Pumps, etc..' started by Michaelr5, Sep 17, 2005.

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  1. Michaelr5

    Michaelr5 Coral Banded Shrimp

    Joined:
    Jan 4, 2005
    Messages:
    370
    Location:
    Noblesville, IN,Indiana
    I recently purchased a ViaAqua 2600 pump. The pump is rated at 740gph at 0 head. Their chart shows that even at 4' head I should still get 400+ from it. I have about 48" from the sump to the top of my tank and then back down 22 to the spray bar. using 1/2" pipe for the spraybar and 5/8 ID hose to connect to the pump. I measured the flow the other day and it took 30 sec to fill a 1 gallon bottle. That's only 120gph! There are only 3 elbows in the entire run. Anyone have any thoughts on how I might improve the performance? (I just realize I have not verified the 0 head flow of the pump, I will try that)

    Mike
     
    Michaelr5, Sep 17, 2005
    Michaelr5, Sep 17, 2005
    #1

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  2. Birdlady

    Birdlady Finback Whale

    Joined:
    May 8, 2004
    Messages:
    2,716
    Location:
    PhillySuburbs, Pennsylvania
    Probably sounds about right. Elbows add major head pressure, as does the 48" run up. I have mine on a mag 9.5 (950 gph) and I get a very gentle flow from mine. :)
     
    Birdlady, Sep 18, 2005
    Birdlady, Sep 18, 2005
    #2