Mag drive

Discussion in 'Filters, Pumps, etc..' started by Deftones2015, Mar 5, 2012.

to remove this notice and enjoy 3reef content with less ads. 3reef membership is free.

  1. Deftones2015

    Deftones2015 Spanish Shawl Nudibranch

    Joined:
    Mar 1, 2008
    Messages:
    77
    Location:
    ohio
    I have a mag 5 and I'm wanting to change out the impeller to lower the flow. I want to get an impeller for a mag 3. First, they are interchangeable right? Also, where would I find one? Every impeller i find says mag 3-5 or 3&5 or something like that.
     
  2. Click Here!

  3. skurious

    skurious Sailfin Tang

    Joined:
    Jun 22, 2009
    Messages:
    1,720
    Location:
    Cedar Rapids, IA
    They might use the same impeller but im not sure, you can slow flow quite easily without changing the impeller. Use a ball or gate valve on the output line to slow the flow.
     
  4. evolved

    evolved Wrasse Freak

    Joined:
    Feb 26, 2010
    Messages:
    4,257
    Location:
    Phoenix, AZ
    Correct; swapping the impeller won't do anything for you if they're interchangeable. You'll still have the same amount of flow.
     
  5. Deftones2015

    Deftones2015 Spanish Shawl Nudibranch

    Joined:
    Mar 1, 2008
    Messages:
    77
    Location:
    ohio
    I see, the mag 5 and 7 are able to change flow with just a different impeller. How can I tell if Im restricting thebflow enough? I bought the mag 5 for my 40 breeder thinking I wanted more flow and now realize its more than I really need.