Return pump advice

Discussion in 'Beginner Discussions' started by Ishtak, 23 Aug 2011.

  1. Ishtak

    Ishtak

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    Evening lads and lasses,

    Is this normal for a return pump? Switched off the level of the water is as follows, excuse the pic being on it's side .. couldn't work out how to turn it. So much for me being an IT geek :tt2:

    [​IMG]


    But once the pump turns on it does this. I'm nervous this is going to damage the pump. Surely the whole pump needs to be submerged at all times??

    [​IMG]

    Am I doing something wrong?
     
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  3. Keanan

    Keanan 2time

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    Either your return pump it too strong or your water level is too low. What is the water level in the display tank when you turn the pump off? Mine does the same when there is less water in the tank.

    Whats the size of your tank?

    P.S why is your water so murky?
     
    Last edited: 23 Aug 2011
  4. duanead

    duanead

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    Hey bro I started my tank 3 weeks ago and had the same,don't know if its the case with yours but mine was pumping water to fast so then your tank can't get enough water coming back
     
  5. Keanan

    Keanan 2time

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    If that is the case and the pump is too strong then you can put a ball valve on the piping and tune it down or have a look at the thread @RiaanP posted and bypass some of the water back to the sump. The ball valve would be easier though.:p
     
    Last edited by a moderator: 26 Nov 2015
  6. Skumbuza

    Skumbuza

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    need to increase flow into sump. 2time is right, but put's strain on the motor !
    if u can't increase flow into tank, maybe look at getting a smaller return pump.
    what size piping is entering ur sump ?
     
  7. Keanan

    Keanan 2time

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    Forgot about that.:blush:
     
  8. Ishtak

    Ishtak Thread Starter

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    I just added the substrate in today. Tank filled up with RO water yesterday. The tank is 1200x600x600. The level of water sits like this with everything switched off. Is it just a matter of me being impatient and needing to put more water in? I've been lurking on MASA for a few months now reading pretty much everything I can get my hands on.. and I still feel like I know nothing :y1:

    [​IMG]
     
  9. Ishtak

    Ishtak Thread Starter

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    Return piping is 50mm. Slagter, who's tank I purchased told me the pump he used had a similar rating to the one I bought.

    [​IMG]
     
  10. Keanan

    Keanan 2time

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    Oh ok I see so now.:blush: I think that you just need to put more water in the tank, by the looks of your sump, a couple more litters of water can go in. Don't worry you will soon get the hang of things, just read some more when you have some spare time.:)

    What you can do is put some more water in, not a lot. Turn the return pump on and the water level in the return compartment should rise.
     
  11. Ishtak

    Ishtak Thread Starter

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    I'm on MASA pretty much all day already :)

    Guess I'm making more RO water tomorrow ....

    I'm truly amazed at the amount of knowledge and the willingness to help out on this site. It's 11pm and you guys responded to my post like fireflies to a light :yeahdude:
     
  12. Keanan

    Keanan 2time

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    :lol:

    Another addict you say. Me too, on most of the day.:blush:

    No prob bud, just helping out a fellow reefer.:yeahdude:
     
  13. RiaanP

    RiaanP Moderator

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  14. leslie hempel

    leslie hempel Moderator MASA Contributor

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    well for atarters its an Ocean Runner pump, good quality and can be run externally so long as water flows through the pump at all times, i personally tale off the strainer and add a threaded elbow facing down to increase the depth the pump can draw water from..

    secondly and most importantly it would be best to figure out why the water is not returning to the sump quick enough? are the pipes too small? insuffiecient holes?

    if so and you cannot change this i would simply T off at the return and feed some of the water bak to the first compartment of the sump,

    this T's section can also be used to run other methods of filtration such as bio pellet, carbon and phos reactors..

    the amount of water fed to them can be regulated with a valve to reach an equilibrium...
     
  15. Ishtak

    Ishtak Thread Starter

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    So ..... I added another 25litres of RO water tonight ... and it's working! My tank is finally pumping :) .... I soooooo relieved :)

    Thanks for all the advice guys ;)
     
  16. Skumbuza

    Skumbuza

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    Good stuff ! Didn't wanna sound like an idiot, but was gonna say... just add more water !
     
  17. Keanan

    Keanan 2time

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    :thumbup:

    :lol:
     
  18. leslie hempel

    leslie hempel Moderator MASA Contributor

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    ha ha sometimes its the simplest thing we overlook, :lol:

    well spotted
     
  19. Elrond

    Elrond

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    Ishtak - just make sure that with the additional 25l of water, if the return pump stops (i.e.: power failure) the sump doesn't flood. I can't see the full sump layout and how much extra volume you've got. It should be fine but rather safe than sorry!
     
  20. Neil H

    Neil H Moderator MASA Contributor

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    i think there may be a back pressure problem there as well.... drill a small hole (8mm or so) into the 50mm pipe just above where it enters the water in the sump... this will make it a lot quieter as well
     
  21. Ishtak

    Ishtak Thread Starter

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    Already tested that last night :) .... I'm paranoid about flooding the carpet ... Now to wait for the tank to clear ... *sigh*

    Man this hobby is intent on teaching you patience! :biggrin:
     
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