This site is supported by the advertisements on it, please disable your AdBlocker so we can continue to provide you with the quality content you expect.
  1. We are after as many aquarium plant images that we can get, doing so will assist us in completing the aquarium plant database.

    https://barrreport.com/threads/aquatic-plant-images-wanted.14374/
    Dismiss Notice

how does the quantity of filter material in a basket affect flow rate?

Discussion in 'General Plant Topics' started by papelboyl1, Jan 29, 2012.

  1. papelboyl1

    papelboyl1 Junior Poster

    Joined:
    Jan 10, 2012
    Messages:
    2
    Likes Received:
    0
    Local Time:
    2:55 AM
    Would the flow rate be reduced if say I have a basketful of substrat/matrix (or any filter material that has an irregular shape and not inside a filter bag) compared to say half-basketful?
     
  2. feh

    feh Guru Class Expert

    Joined:
    Jan 14, 2011
    Messages:
    669
    Likes Received:
    2
    Local Time:
    2:55 AM
    There are a lot of things that can restrict flow on a canister filter - length of the tubing, letting stuff build up in the tubing, inline equipment such as a hydor inline heater or CO2 reactor, adding more filter media will effect it as well. Even dirty impellers can slow things down. Anything in the path of the water flow that makes the trip longer to the tank or obstructs the path is going to slow the flow down. You can always supplement flow in the tank itself with a power head if you need it or go with a bigger filter. What are you trying to accomplish?
     
  3. papelboyl1

    papelboyl1 Junior Poster

    Joined:
    Jan 10, 2012
    Messages:
    2
    Likes Received:
    0
    Local Time:
    2:55 AM
    Im not talking about 2 canisters with different tube length/etc. im talking about a canister filled with a basketful of matrix and the Same canister with only half a basket. I guess my aim is mostly for my information if the reduced flowrate is significant.
     
  4. feh

    feh Guru Class Expert

    Joined:
    Jan 14, 2011
    Messages:
    669
    Likes Received:
    2
    Local Time:
    2:55 AM
    Try adding 1/2 a basket to the same filter and see how the flow is. If you don't like it you can always remove it.
     
  5. Florin Ilia

    Florin Ilia Lifetime Charter Member
    Lifetime Member

    Joined:
    Mar 22, 2011
    Messages:
    420
    Likes Received:
    0
    Local Time:
    2:55 AM
    And if you're wondering how to measure the flow, you can simply measure the time your filter outflow takes to fill a container of known volume. The larger the container the more accurate the result.

    If it takes N seconds to fill a container of M liters, then your flow is
    M x 3600 / N l/h

    Same formula if you prefer gallons instead of liters.
     
Loading...

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice