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Featured First sump. Return pipe question

Discussion in 'Tank Mods & DIY' started by james_baillie, Sep 6, 2016.

  1. james_baillie

    james_baillie Registered

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    Guys I brought a flexible half inch nozzle and looks small now. Is this ok to use with my 20 mm PVC from a Jabeo dct6000 return pump?

    What are you guys using as your return output..pics would be great?

    Thanks


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  2. northernreefa

    northernreefa Registered

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    I used flexible pipe so as to reduce the noise from the vibrations. In fairness though when I designed my sump I ensured that my return pump was directly under my weir to reduce the length of pipe needed and also it is a straight length with no bends on it so it doesn't impede return flow
     
  3. james_baillie

    james_baillie Registered

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    I may swap for a bit of tubing but rest will be pvc ..I'm more asking about the end. The bit that has the water coming out. Not sure to have a Nozzle or not and if so is 1/2 inch a bit too small


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  4. northernreefa

    northernreefa Registered

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    I would have thought you'd need a bigger piece of pipe as 1/2 an inch is only 13mm so it might be too much of a tight fit, you could always try heating up the PVC pipe with hot water to make it more malleable to see if it will go onto the 20mm fitting but I reckon you'll need a larger diameter pipe
     
  5. northernreefa

    northernreefa Registered

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    If the piece of pipe you buy is slightly too big you could always use some cable ties to sure it up
     
  6. james_baillie

    james_baillie Registered

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    Hi that's not what I asking. I using PVC as I said to the Nozel . I can always reduce it. That's why I got 1/2 inch as you can't seem to get a reducer to 3 easy with the size pipe I'm using .

    The question im asking is more about the flow from the Nozel . Is 1/2 too small


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    Last edited: Sep 7, 2016
  7. james_baillie

    james_baillie Registered

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    Think I'm just going to go 20mm all the way with couple of elbows to the tank. That's about 3/4 inch


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  8. northernreefa

    northernreefa Registered

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    Sorry mate I picked you up wrong there
     
  9. james_baillie

    james_baillie Registered

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    Np the piping is sorted from the return . I'm just not sure to use a flexible Nozel or just elbows and is 1/2 to small for flow otherwise I won't use it. When I get it off eBay it now seems a bit small


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  10. james_baillie

    james_baillie Registered

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    Could do wth pics really of how people done it


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  11. warby

    warby Registered

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    all your going to do is create back pressure if you use 20mm pipe then drop is down 1/2 inch.
    my return pipe is 1inch to the tank then it has a 'T' with one reduced to 3/4 and the other bit goes to a elbow which is the reduced to 3/4 so iv got 2 returns off 1 pipe...... iv got a dct8000 return pump.

    [​IMG]

    [​IMG]

    you might aswel just go 20mm all the way unless your want to do like mine above then you could drop down to 2 x 16mm

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    Last edited: Sep 7, 2016
  12. CEECH

    CEECH Registered

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    I am going to use some soft hosing on mine as there will not be so many bends to restrict flow.The return will give surface agitation and some flow around top area of the tank the wave makers will take care of the milddel and bottom.Did you drill holes on your return incase of back syphon if return loses power ?
     
  13. james_baillie

    james_baillie Registered

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    Perfect. Answer I was wanted . Makes things easier for me
    I shouldn't need to split for dual returns? Only a 220l display

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    Last edited: Sep 7, 2016
  14. james_baillie

    james_baillie Registered

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    I've not got that far but I no what I'm going to do now

    Thanks


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  15. CEECH

    CEECH Registered

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    I was wondering what to do myself and was advise to drill some small hole on the end of the pipe so if the pump stops you will get some back syphon but once water goes down a little air will come in the holes and break the syphon
     
  16. warby

    warby Registered

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    if you do this you will get wet when the pump is running..... the best way is to have the pipe high enough so it dosent syphon back more then your sump can handle. mine drops about 1inch and fills my sump about 1inch below the top glass.



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  17. warby

    warby Registered

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    it dosent really matter if you have 1 or 2 I prefer to so I can angle flow in different directions.

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  18. james_baillie

    james_baillie Registered

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    Good idea. I think I may have 1 due to room


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  19. rabbut

    rabbut Registered

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    1 or 2 (or more) return outlets for me depends on where the wire(s?) is, and how large the tank is. For a corner weired average sized system, I prefer 1 outlet at the opposite end of the tank. For a central wire, I prefer 2 outlets in the corner. A lot of this is personal preference mixed with what else is being done in the tank for flow.

     
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