need someone to help me run the numbers

Discussion in 'Filters, Pumps, etc..' started by Swisswiss, Jul 10, 2015.

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  1. Swisswiss

    Swisswiss Caribbean Reef Squid

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    hello folks,

    im looking to get an estimate of my tank turn over, not having fully understood how this is calculated i turn to you....

    I currently have two main powerheads in my system, a tunze that states 6500 L/h that turns on for 10 seconds and stays off for 10 seconds
    and a newave set for 9700 L/h that turns on for 35 seconds and stays off for 35
    seconds. Together with this I have my return that I estimate is running at around 900 L/h (controled by a ball valvle and its a wild guess).

    almost forgot this is in a 450 litre tank but with rock work i think should be around 400 mybe 380

    thank you for baring with me
    Jeff
     
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  3. Billme

    Billme Eyelash Blennie

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    About 22.5x
     
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  4. Swisswiss

    Swisswiss Caribbean Reef Squid

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    thx billme, Ill admit i was hopeing i was on a slightly higher end than that.
     
  5. Va Reef

    Va Reef Giant Squid

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    FWIW, turnover = liters per hour of all things moving water, divided by the volume of your tank.

    For example, if you have 1200L/h movement in a 60 liter tank, you have 20X turnover.
     
  6. Billme

    Billme Eyelash Blennie

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    Here's the math I used:
    Tunze: 6500/2= 3,250 L/H
    Newave: 9700/2= 4,850 L/H
    Return: 900 L/H
    3,250+4,850+900=9,000 (total flow)
    9,000L/H divided by 400L= 22.5/H
    Just a breakdown of what VA said.
     
  7. Swisswiss

    Swisswiss Caribbean Reef Squid

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