Results 1 to 5 of 5

Thread: Return Pump Power reduction

  1. #1
    Regular Vistor
    Join Date
    Jan 2014
    Location
    United States
    Posts
    17

    Return Pump Power reduction

    So I have a quick question after my last water change I noticed that one of my return pumps, I have 2, is consuming less power. If there is a blockage would it consume more not less? I would assume more because it would work harder. Should I be concerned or just change the threshold on the monitoring? As reference the other pump, identical, is pull 73W to the 64W this one is. The 64W on was above 70W before.
    Thanks

    Pump.JPG

  2. #2
    Frequent Contributor zombie's Avatar
    Join Date
    Dec 2013
    Location
    Denver, CO
    Posts
    13,176
    It's a little bit counterintuitive, but the power used by a pump actually does go down when it gets clogged. This is because power is directly proportional to the flow rate (the efficiency curve can sometimes throw a curve ball into this), so as the line gets clogged and the flow drops, so too does the power drop.

    Sent from my SM-G965U using Tapatalk

  3. #3
    Frequent Contributor zombie's Avatar
    Join Date
    Dec 2013
    Location
    Denver, CO
    Posts
    13,176
    Here is a graphic



    Sent from my SM-G965U using Tapatalk

  4. #4
    Regular Vistor
    Join Date
    Jan 2014
    Location
    United States
    Posts
    17
    Excellent thanks. Fluids wasnt my fav class in eng school. I will take a look.

  5. #5
    Frequent Contributor zombie's Avatar
    Join Date
    Dec 2013
    Location
    Denver, CO
    Posts
    13,176
    Quote Originally Posted by stubro View Post
    Excellent thanks. Fluids wasnt my fav class in eng school. I will take a look.
    I know your pain. Had to take that one twice myself. Hated it almost as much as thermo

    Sent from my SM-G965U using Tapatalk

Similar Threads

  1. Power Log Not Showing Return Pump Data
    By kayceejake in forum APEX Fusion
    Replies: 0
    Last Post: 12-02-2018, 05:47
  2. Review My Program Tunze Osmolator Delay for Power OFF/Return Pump OFF
    By IanB13 in forum Apex Programming for Dosing, ATO, and AWC
    Replies: 3
    Last Post: 11-01-2018, 08:05
  3. DC Return pump program for short duration power outage
    By P-Dub in forum Misc Apex Usage & Programming
    Replies: 2
    Last Post: 07-27-2018, 19:31
  4. Power outage return pump program
    By Charles Silva in forum Misc Apex Usage & Programming
    Replies: 1
    Last Post: 02-04-2016, 11:23
  5. Help with Power Apex Off statement for return pump
    By AlanM in forum Misc Apex Usage & Programming
    Replies: 3
    Last Post: 09-15-2013, 10:19

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •