Return Syphon Break

Discussion in 'Pumps and Waterflow' started by RiaanP, 25 Jul 2009.

  1. RiaanP

    RiaanP Moderator

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    I notice a few questions about Syphon break on the return line. Everybody got their own design.
    Here is mine. I got a micro irrigation connector in my return above the water line. If I do not see the thin pee line, I use a toothpick to unclog it. A very quick glance, and my break is checked every day.
    [​IMG]
     
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  3. Mekaeel

    Mekaeel Moderator MASA Contributor

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    Clever idea Riaan. Something I should look at in order to have a better night sleep. :)
     
  4. Tony

    Tony

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    Nice one Riaan. Nothing worse than a flooded carpet after a power outage
     
  5. riyadhessa

    riyadhessa

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    Riaan very clever idea...
     
  6. keyaam

    keyaam

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    Nice idea Riaan. I have done the same but just added a valve so that I can adjust the flow.
     
  7. FransSny

    FransSny

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    :thumbup: for the idea Riaan...will definitely incorporate this in my new setup
     
  8. RiaanP

    RiaanP Thread Starter Moderator

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    Any other good ideas?
    With a pic please.
     
  9. Sentari

    Sentari

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    Awesome Riaan! Thanks for this. I'm busy with the plumbing and will be using you idea!
     
  10. Andreas

    Andreas

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    Nice one:)
     
  11. Sentari

    Sentari

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    Riaan how did you get that siphon nozzel on the pipe? did you drill a hole an screw it on or did you just glue it with PVC Weld.
     
  12. RiaanP

    RiaanP Thread Starter Moderator

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    The micro irrigation kit got a little tool. Looks like a T. One point is sharp to press a hole, and the bottom of the T is a socket, to screw in the connector. The connector is threaded.
     
  13. Sentari

    Sentari

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    ahhh makes sense! Thanks Riaan!
     
  14. Sentari

    Sentari

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    Riaan what is the size of your return pipe? Mine is 40mm was just wondering if that is tooo thick? What do you think?
     
  15. Pugsly

    Pugsly

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    on my return I used a 'T' piece with the "main" outlet facing down and into the water and the other side I extended with a piece of PVC (same as the return 40mm) with a 90 degree elbow facing slightly up just above the water line - water does not exit the second outlet only the first one - so when the power goes off it has one "huge hole" to suck in air and break the back siphon - works great for me!!!!!! Like this I don't even get a litre returning to the sump.
     
  16. RiaanP

    RiaanP Thread Starter Moderator

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    Standard flexible 20mm pipe, but what will be important is the wall thickness op the pipe, not pipe diameter.
     
  17. Andreas

    Andreas

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    Pipe diameter will have an effect on the amount of water that reaches the top.The thicker the pipe the more pressure you'll have and the harder your return pump will have to work to "PUSH" the water up.IMO 40mm is to thick:)
     
  18. Sentari

    Sentari

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    Everyone says that 40mm is too thick. Dammit.... I went and bought all this stuff now. I have a 15mm clear flexible pipe connected to a 40mm return over the tank. I'm using a 1500l/h pump. Do you think i should rather go for 20mm? or can i use the 40mm? its normal PVC piping.
     
  19. Andreas

    Andreas

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    I would personally go with 20mm. Electrical conduit is dirt cheap. One standard lenght would do the trick and I think it goes for less than R20. You can just get some 20mm 90degree elbows.
     
  20. Sentari

    Sentari

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    Okies! Going to have to go shopping and see if i can get all the parts of 20mm piping. What do you use to change from 15mm flexible clear tubing into the hard pvc? I was thinking there are garden connections that can be used.

    Sorry for hijacking Riaan!
     
  21. RiaanP

    RiaanP Thread Starter Moderator

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    Check again the picture, its is 20mm garden irrigation connectors... 90 degree elbows.
    Only problem with clear pipe, it does not stay clear and stuff like algae can grow inside. But then again sponges do grow inside dark solid pipe.
     
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