Can a pump be too powerful

Discussion in 'Pond Construction & Equipment' started by Gemma, Nov 4, 2017.

  1. Gemma

    Gemma

    Joined:
    Jun 8, 2016
    Messages:
    2,572
    Likes Received:
    2,455
    I recently had to buy a new pump and I decided to upgrade from 4500GPH to 6000GPH to have a larger turnover, but now I'm wondering if that was a smart thing to do I mean does the same principal for the UV (slower pump equal better result) apply to the filter?...is the new pump way too fast for proper filtration to occur?
    My pond is 3'x10'x1' deep on the top and 8'x14'x4.3' deep on the bottom
     
    Gemma, Nov 4, 2017
    #1
    1. Advertisements

  2. Gemma

    mrsclem mrsclem

    Joined:
    Jul 21, 2008
    Messages:
    2,571
    Likes Received:
    2,267
    Location:
    st. mary's county, md.
    What type of filter do you have?
     
    mrsclem, Nov 4, 2017
    #2
    Gemma likes this.
    1. Advertisements

  3. Gemma

    Tula

    Joined:
    Sep 14, 2013
    Messages:
    3,948
    Likes Received:
    3,080
    Location:
    Cincinnati, Ohio
    I know a Sand & Gravel filter polishes the water better, if the water moves through it more slowly. I think it depends on what type of filter you have.
     
    Tula, Nov 4, 2017
    #3
    Gemma likes this.
  4. Gemma

    mgmine

    Joined:
    May 5, 2013
    Messages:
    797
    Likes Received:
    399
    Location:
    Le Roy, New York
    I would say yes. With mine I have to turn the valves down so that my water falls doesn't turn into Niagara Falls. My filter which is 275 gallons can't take the pump putting out a full force.
     
    mgmine, Nov 4, 2017
    #4
    Gemma, MitchM and Tula like this.
  5. Gemma

    MitchM

    Joined:
    Jun 11, 2012
    Messages:
    6,897
    Likes Received:
    6,971
    Location:
    Water Valley, Alberta
    If you put a valve on the plumbing to reduce flow, make sure you put it on the outlet side of the pump, not the inlet side.
     
    MitchM, Nov 4, 2017
    #5
    Gemma likes this.
  6. Gemma

    Gemma

    Joined:
    Jun 8, 2016
    Messages:
    2,572
    Likes Received:
    2,455
    The skimmer goes to two Bio-falls
    The waterfalls is just a bit faster but not considerably fast like you described yours
    I'll make a note, thank you! ...but before I decide to slow down the flow, I want to make sure it is necessary for better filtration
     
    Gemma, Nov 4, 2017
    #6
    MitchM likes this.
  7. Gemma

    Meyer Jordan Tadpole

    Joined:
    Oct 10, 2014
    Messages:
    7,177
    Likes Received:
    5,640
    Location:
    Pensacola, Florida
    Based on the measurements that you gave, the total capacity of your pond(s) is 3800 +/- gallons. Since the recommended turnover rate is 1.5 - 2.0 times the total capacity depending on fish load, a 6000 gph pump is comfortably in this recommended range.
    What, however, is the maximum flow rate for your present filter as this could affect the efficiency level of the biofiltration.
    In addition, what is your present fish load?
     
    Meyer Jordan, Nov 4, 2017
    #7
    Gemma likes this.
  8. Gemma

    Gemma

    Joined:
    Jun 8, 2016
    Messages:
    2,572
    Likes Received:
    2,455
    I have a 10" skimmer going to two Falls one is 22" Elite pond builder and the other one is an Aquascape a bit larger maybe 24-26" I'm really not sure what the capacity is, but the skimmer was upgraded to this size by the contractor supposedly to accommodate 2 pumps (one per each fall) one was the 4500GHP that just died and the other was 2800GHP...it worked fine for a while than the breaker kept tripping so we thought the more powerful pump was starving the other and decided to use one pump for both falls

    Fish load 12 koi between 6" and 20" and 2 Shubunkins
     
    Gemma, Nov 4, 2017
    #8
  9. Gemma

    Meyer Jordan Tadpole

    Joined:
    Oct 10, 2014
    Messages:
    7,177
    Likes Received:
    5,640
    Location:
    Pensacola, Florida
    The 6000 gph pump should be well-suited to your needs.
     
    Meyer Jordan, Nov 4, 2017
    #9
    Gemma and Jimmy Gibson like this.
  10. Gemma

    sissy sissy

    Joined:
    Jan 17, 2011
    Messages:
    31,320
    Likes Received:
    14,351
    Location:
    Axton virginia
    Never restrict a pump if you do the chances of burning it out are greater .Reason I use 2 pumps and 2 sets of hoses and spitters made from pvc connected to the hoses with a clamp and and 4 way connectors .
     
    sissy, Nov 4, 2017
    #10
  11. Gemma

    Meyer Jordan Tadpole

    Joined:
    Oct 10, 2014
    Messages:
    7,177
    Likes Received:
    5,640
    Location:
    Pensacola, Florida
    Sorry but that is not quite true. Throttling the flow on a pump may result in a higher operating cost, but it does no harm to the pump.
     
    Meyer Jordan, Nov 4, 2017
    #11
    Rajesh likes this.
  12. Gemma

    sissy sissy

    Joined:
    Jan 17, 2011
    Messages:
    31,320
    Likes Received:
    14,351
    Location:
    Axton virginia
    Did that and had a pump burn out and it was a new pump .Sad to say never did it again .
     
    sissy, Nov 4, 2017
    #12
  13. Gemma

    Meyer Jordan Tadpole

    Joined:
    Oct 10, 2014
    Messages:
    7,177
    Likes Received:
    5,640
    Location:
    Pensacola, Florida
    Pumps actually run better with a certain amount of Head (back pressure). Allowing pumps to maintain maximum rpms over extended periods of time causes excessive wear and overheating shortening the life of the pump.
     
    Meyer Jordan, Nov 4, 2017
    #13
  14. Gemma

    Gemma

    Joined:
    Jun 8, 2016
    Messages:
    2,572
    Likes Received:
    2,455
    That's all I needed to know thank you so much! :)
     
    Gemma, Nov 4, 2017
    #14
  15. Gemma

    Rajesh

    Joined:
    Feb 20, 2017
    Messages:
    86
    Likes Received:
    80
    Dry run or run with low intake will wear the pump faster!
     
    Rajesh, Nov 5, 2017
    #15
  16. Gemma

    GBBUDD

    Joined:
    Dec 16, 2017
    Messages:
    1,273
    Likes Received:
    1,454
    Location:
    Ct
    There's a simple solution if you can do a little plumbing. UV definitely work better the longer the water is exposed to the light and the same basic principle is for filters the slower the water flows through the less debris is forced through the media. With that if you split the supply line before it gets to either the filter or uv creating a by pass add a couple ball valves to regulate how much flow goes through your filters. Just connect the bypass as the water comes out of the filters " You can keep the wanted gph to your falls and not max out your filters yes some water will not get filtered but if your system was doing ok at lesser gph then the only change should be your o2 levels which should help your over all pond health.
     
    GBBUDD, Mar 6, 2018
    #16
    1. Advertisements

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.