Skimmer Plumbing

Discussion in 'Protein Skimmers, Mechanical Filtration' started by poiromaniax, 15 Apr 2010.

  1. poiromaniax

    poiromaniax MASA Contributor

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    Hey guys,

    Got me a new setup and skimmer (DNW 200 recirc) and now Im wondering the best way to plumb it:

    Should I run the skimmer using a feed pump or tee off the overflow pipe, add a ball valve and run the skimmer from that.

    Something like this super advanced hand drawn sketch that took me 3.5 hours to complete (including all the details) :p

    [​IMG]

    Advantage of not using a feed pump (that I can think of)

    Less heat transfer
    Less power consumption
    I can make a larger DSB
    Can finely tune water input
    Cleaner sump appearance
    Lower cost involved (dont have to buy a pump)

    Disadvantage:

    Ball valves can get blocked, reducing skimmer efficiency
    Higher cost of plumbing
    There is the problem of skimmer "burps" and the level rising and falling - hopefully the ballvalve would prevent that

    Those are all I can think of and so far its looking like there are much more advantages. Can anybody offer some input?
     
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  3. vatso

    vatso

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    It's most important to make sure the skimmer gets water from the tank or else it does not work as well I am told that's the first thing the rest not so sure about :lol:
     
  4. poiromaniax

    poiromaniax Thread Starter MASA Contributor

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    haha, nah dude - some people make plumbing look like an art, I never have, thats why im asking the pros ;)
     
  5. ziyaadb

    ziyaadb

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    use a feed pump its better
     
  6. poiromaniax

    poiromaniax Thread Starter MASA Contributor

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    Ziyaad, would I be able to use the pump from my TS1 to feed the skimmer? or is it too small?
     
  7. mariusmeyer

    mariusmeyer

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    I would go for the OTP2000 at least. Maybe even another 3000. The TS1 pump (OTP1000) is way too small.
     
  8. poiromaniax

    poiromaniax Thread Starter MASA Contributor

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    Guys have told me I should be feeding it with 1500LPH, think the 3000 will be way too powerful?
     
  9. JD167

    JD167

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    I had the same issue when I installed mine. I actually duel plumbed my overflow to go to sump as well as skimmer and also added a 1000L/hour pump to feed to skimmer. so I can feed from just the overflow, or just the pump or both. The problem with sending water directly from overflow is that your rate of flow is never constant. Not good for skimming.

    If you install a pump, don't go higher than 1000L/hour. You need the contact time in the skimmer.
     
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  10. poiromaniax

    poiromaniax Thread Starter MASA Contributor

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    JD do you also have the DNW 200?

    How did you plumb from the overflow? directly or with a ballvalve?
     
  11. JD167

    JD167

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    Yup, DNW200. Mine plits in two with two ballvalves. Currently the flow is to the sump and is then pumped to the skimmer with a 1000L/h pump. The valve from the overflow to the skimmer is currently closed. I found the pump gives better water level stability than using the direct method.
     
  12. poiromaniax

    poiromaniax Thread Starter MASA Contributor

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    So you rate an OTP1000 will be more than enough? thats good, then I can just use my TS1 Pump (With a normal impellor)
     
  13. ziyaadb

    ziyaadb

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    1000 should be cool
     
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  14. poiromaniax

    poiromaniax Thread Starter MASA Contributor

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    Then thats perfect!

    Thanks guys.
     
  15. ziyaadb

    ziyaadb

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    oh on the 1000 as long as you dont have a crazy head height i prefred to use soft tubing instead of pvc with 90Degree elbows
     
  16. poiromaniax

    poiromaniax Thread Starter MASA Contributor

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    How would I connect soft tubing to the inlet though?

    Head height will be like 400mm, so dont think it will be much of an issue?
     
  17. poiromaniax

    poiromaniax Thread Starter MASA Contributor

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    A guy on an overseas forum just posted this.

    This is actually what I was trying to draw in paint
    [​IMG]


    This way the water will back up into the pipe and using the ball valve, I can tune the water.

    What do you guys think is better, this or a pump? (Bearing in mind I wanna have a very clean looking sump - or at least try :p )
     
  18. ziyaadb

    ziyaadb

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    u get a sorta nipple that would fit onto the skimmer and u could push the soft piping in there 400 would be fine. I still say feed with the pump, But try with a ballvalve and see what happens
     
  19. JD167

    JD167

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    Tubing will work, but I found them to be un neat and over time algae builds up in the pipe due to the exposure to light.
     
  20. poiromaniax

    poiromaniax Thread Starter MASA Contributor

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    Thanks guys, Im not 100% sure which route I will take, I will just have to make a decision and stick with it
     
  21. Reef Maniac

    Reef Maniac MASA Contributor

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    My Deltec skimmer is plumbed directly to the tank overflow, with a bypass loop, as per your drawing. IMHO this is the best way to feed your skimmer.

    I would recommend that you install a valve in the bypass loop, and in the skimmer feed pipe.

    I will try to post some pics of my setup during the weekend.

    Hennie
     
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