noisy over-flow

Discussion in 'Beginner Discussions' started by Rax123, 27 May 2010.

  1. Rax123

    Rax123

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    hi, can anyone help suggest ways of reducing noise from my over flow. Got new tank, did a test run to make sure tank hold up well, every fine so far except for loud slurping ( whirl pooling thro the down pipe to sump) sound. Pic included to show over flow and plumbing...
     
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  3. Rax123

    Rax123 Thread Starter

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    [​IMG]
     
  4. Qaiser

    Qaiser

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  5. RiaanP

    RiaanP Moderator

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  6. Qaiser

    Qaiser

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    Garethmur

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  8. Qaiser

    Qaiser

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    MistaOrange

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  10. Rax123

    Rax123 Thread Starter

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    the down pipe is 32mm and return is 25mm, the LHS pipe is the down pipe.
     
  11. Rax123

    Rax123 Thread Starter

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    Hi Riaan, do u think this would work on a 32mm pipe?
     
  12. Rax123

    Rax123 Thread Starter

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    this looks interesting, i need to add a T- piece and 90deg elbow?
     
  13. PeterL

    PeterL

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    I simply put a valve under my tank on my outlet, throttled that just a little and the overflow chamber raised water level stopped the toilet effect. By veirtue on incereased water pressure as the overflow chamber filled with water meant that I throttled teh outlet more and more until I have it where it is now - finely tuned to have the water overflowing into the chamber however not throttle too much not to remove the water fast enough to keep up with the return pump and I am running a single 25mm pipe outlet and return.

    The throttling is only to about 5% maybe, the valve is almost fully open. I am however interested in checking out the Durso setup - it looks like it is going to be much better than what I currently use but I need to do my research properly before I go for it.
     
  14. neil.h

    neil.h

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    Durso stops the sucking sound/vortex as the water enters the pipe on your overflow
    Using a ball valve as close as possible to the outlet to throttle flow back stops the flushing sound/noisy pipes
     
  15. Rax123

    Rax123 Thread Starter

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    gonna try this DURSO set-up, i will be puting a stop valve near the sump...now, is there anyway to undo the pipes, I`ve used pvc weld, or does it mean starting over with new ones.
     
  16. neil.h

    neil.h

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    You can try a heat gun slowly over the welds. I just succeeded in burning the plastic :wave2:
     
  17. Boegie

    Boegie

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    My durso works great.
     
  18. JD167

    JD167

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    Add a valvle to the overflow pipe and adjust it so that the overflow box stays about half full of water. No splashing or slurping.

    As for undoing PVC welding, depending on how well you did it, chances are you won't be able to undo them. Someone else may have some ideas.
     
  19. Nsteyn

    Nsteyn

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    I did the same as JD, and it takes a while and lots of tinkering to get the flow rate 100% But mine is 100% now, so I think a combination of the durso and the valve should sort your problem out.

    Regards, Niel
     
  20. manta

    manta

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    All the above is cool. however a much easier way is to build a little platform in the overflow box from eggcrate. Then you put your carbon or aniphos on it and voila problem solved.
     
  21. jacquesb

    jacquesb Retired Moderator

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    Rax, a Durso would work, but it would also work if you add some gate-valves or ball-valves to the overflow outlets..... then you can control the water level as well as water flow back to your tank (your return pump water flow)....
     
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