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  1. #1

    Skimmer piping idea , tell me I'm wrong Skimmer piping idea , tell me I'm wrong [emoji16]

    Hi all

    Maybe a random idea but, i have a sleeper pond with wall skimmer. Currently have a pump attached to bottom of skimmer and the water is pumped to veggie filter.
    I also Have a cetus sieve up and running off a BD. Could I just fit a tank connector through upper side wall of sieve and connect the skimmer feed via 50mm pipe to the sieve without it being pumped as sieve is lower then skimmer.
    I'm basically looking to remove need for skimmer pump, and am too lazy to T a 110mm or 3inch hard pipe to the sieve feed from the skimmer as it's all underground and difficult to get to.
    Would there be enough draw from skimmer with a 50mm flexi hose.

    Would saw off bottom of skimmer and use rubber reducing boots to get pipe size down. thoughts on this. ? Thanks phil

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  2. #2
    Senior Member Rank = Grand Champion andikoi's Avatar
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    why not just put 50mm pipe on skimmer exit,the 40mm hole to 50mm in skimmer bottom wont restrict that much,as for cetus,i would be worried if your pump on cetus packed up that skimmer feed would just keep filling it and possibly overflow,andi

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  4. #3
    Extreme Koi Member Rank = Sansai Poochops's Avatar
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    I'm soon going to do the same but using 3", valved, below the skimmer, then straight onto a 3" tank connector on my Ultrasieve. Thought process is 3" has got some capacity to it which I can adjust if needed with the valve (and isolate also) also entering the sieve lower down towards the base of the curve will give a bit of head needed to create a siphon effect with the pull of the water in the pipe. It'll also be quieter than splashing down a longer height inside the sieve. Fingers crossed. 3" tank connectors are proper expensive, unless you cobble something from other parts though.

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  6. #4
    Yep good point about it possibly overflowing , will add a photo so can we what I'm meaning

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  7. #5
    Maybe there's not enough drop anyway? Can see skimmer in wall and sieve position , would need to enter sieve quite close to screen to get enough head.

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  8. #6
    Was planning on get access to the 4" pipe work lower down where water enters sieve but it's all about angles with that and weather i can get to it without pipe work being a mess

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  9. #7
    Quote Originally Posted by Poochops View Post
    I'm soon going to do the same but using 3", valved, below the skimmer, then straight onto a 3" tank connector on my Ultrasieve. Thought process is 3" has got some capacity to it which I can adjust if needed with the valve (and isolate also) also entering the sieve lower down towards the base of the curve will give a bit of head needed to create a siphon effect with the pull of the water in the pipe. It'll also be quieter than splashing down a longer height inside the sieve. Fingers crossed. 3" tank connectors are proper expensive, unless you cobble something from other parts though.
    Is that 3" hard piping
    What's the biggest flexible pipe you can get?

    I'm worried if I use 50mm the big leaves may get stuck

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  10. #8
    Quote Originally Posted by Poochops View Post
    I'm soon going to do the same but using 3", valved, below the skimmer, then straight onto a 3" tank connector on my Ultrasieve. Thought process is 3" has got some capacity to it which I can adjust if needed with the valve (and isolate also) also entering the sieve lower down towards the base of the curve will give a bit of head needed to create a siphon effect with the pull of the water in the pipe. It'll also be quieter than splashing down a longer height inside the sieve. Fingers crossed. 3" tank connectors are proper expensive, unless you cobble something from other parts though.
    Could you use one of these in cetus wall

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  11. #9
    Extreme Koi Member Rank = Mature Champion pip895's Avatar
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    The issue is that if your pump stops your sieve will fill with water and you will damage your bellows. Wouldnt do it myself - go for 3 or 4" and do the job propperly - sorry.
    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)

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  13. #10
    Quote Originally Posted by pip895 View Post
    The issue is that if your pump stops your sieve will fill with water and you will damage your bellows. Wouldnt do it myself - go for 3 or 4" and do the job propperly - sorry.
    So take a 4" or 3" reduced pipe and T it into the main BD feed ?

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  14. #11
    Extreme Koi Member Rank = Mature Champion pip895's Avatar
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    Quote Originally Posted by corrado999 View Post
    So take a 4" or 3" reduced pipe and T it into the main BD feed ?

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    Yep that's what you need to do - even if you use 4" all the way you will get more flow through the BD - 3" should still draw enough though the skimmer to keep the surface clear though. You will need to include a slide or ball valve on the run because you want to be able to flush the BD pipework from time to time.

    NB. If you want to save a bit on the slide valve you could go 110mm pipe (just as cheap/cheaper than 3") but use a 3" slide valve - 110mm pipe just fits and can be glued on the outside of the 3" Valida slide valve. Looks neat and saves on space + half the price of a 4" valve.
    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)

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  16. #12
    Senior Member Rank = Grand Champion andikoi's Avatar
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    The other thing is cetus is double walled plastic.may be hard to seal a tank connector in. Use a t piece on bd with a valve on ..andi

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  18. #13
    Quote Originally Posted by andikoi View Post
    The other thing is cetus is double walled plastic.may be hard to seal a tank connector in. Use a t piece on bd with a valve on ..andi
    Good point hadn't thought of that

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