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  1. #1
    Senior Member Rank = Yonsai stewyash's Avatar
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    skimmer into bd line

    I am about to order a 4in aerated bd and skimmer and was wondering, is it possible and would it work to plumb the skimmer into bd line which then be a single 4in outlet plumbed into a sieve? hope this makes sense.
    Cheers



  2. #2
    yes, but you will ned a ball valve on each line to balance. I have this setup into a vortex, and run the BD fully open and just tweak the skimmer open enough to 'Skim'.

    you won't get much flow on the skimmer, but it does work.

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  4. #3
    Extreme Koi Member Rank = Mature Champion pip895's Avatar
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    I presume both are 4"? Provided both are separate feeds with separate valves this works fine. At one point I had a BD & skimmer feeding into a Cetus sieve - It worked fine except that I couldn't get enough flow through the sieve (large pond!). It helps if you have a similar run length and number of bends but if you don't you can clamp down slightly on the faster flowing line to get a balance.
    6000g in ground koi pond
    +3000g lily/Anoxic pond attached
    29 koi (40 to 65cm)
    Bottom drain, Mid water & Skimmer to Drum
    JBR boichamber->Blue eco 500 pump ->below surface return.
    Blue Eco 240 -> Large MB -> Waterfall -> Planted Anoxic pond (25 baskets)

  5. #4
    Senior Member Rank = Yonsai stewyash's Avatar
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    Hi yes they will be both 4" the pond isnt going to be that big I'm looking at around 10' x 8' same amount of bends the skimmer run will be a bit shorter than BD, but awesome if it has been done and works that sounds good to me I new to ponds and trying not to make too many mistakes too early in the build, thanks for your replies

  6. #5
    Extreme Koi Member Rank = Gosai kelv0102's Avatar
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    Do a small sketch and take a picture and I’m sure some one will help


    Sent from my iPhone using Tapatalk

  7. #6
    My pond is over filtered, so I have no issues running both into the same filter.

    My advice would be to do a lot of your bends with rubber bends, easy and quick to do, but allows you to change your mind when (if) you decide you want to run a separate skimmer filter.

  8. #7
    Senior Member Rank = Yonsai stewyash's Avatar
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    Thanks guys just one more question sorry if I sound thick but if I saved some more pennies for a twin 110mm inlet sieve would this be a better option and give better flow from skimmer and BD?

  9. #8
    Extreme Koi Member Rank = Gosai kelv0102's Avatar
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    Yes


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  10. #9
    no.

    You'll have exactly the same problem, and still need the valves.

    okay, it would give better flow, but it's unlikely that a 4" pipe will be a bottleneck in your system on a pond that size. That said, bigger is always better when it comes to filtration.

  11. #10
    Extreme Koi Member Rank = Mature Champion pip895's Avatar
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    I presume you will be getting your sieve second hand - if a nice Ultra sieve turns up on eBay locally then go for it. Otherwise as has been mentioned a single won't make much difference. If you go for a Cetus then it's the internal 3inch and bellows that restrict flow.
    6000g in ground koi pond
    +3000g lily/Anoxic pond attached
    29 koi (40 to 65cm)
    Bottom drain, Mid water & Skimmer to Drum
    JBR boichamber->Blue eco 500 pump ->below surface return.
    Blue Eco 240 -> Large MB -> Waterfall -> Planted Anoxic pond (25 baskets)

  12. #11
    In originally built my skimmer onto my bottom drain line but it didnt work. My skimmer wouldnt pull at all. I have since split them and put my skimmer into easypod and it works a lot better

 

 

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