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  1. #41
    Senior Member Rank = Grand Champion andikoi's Avatar
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    you would have to put a valve on each outlet side of the T then either shut bd off for a few hours and open skimmer line or try and balance the flow so you have enough draw to keep bd and skimmer doing theyre job,when i got my drums and shower i planned on selling my nexus 200 to scrape some cash back as i went £1.5k over budget,i planned on doing same and using a T but decided to use nexus on skimmer until next spring instead lol,i do have a stainless nexus but cant figure out how to use it instead of nexus as it was designed to hold an answer,andi

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  3. #42
    Extreme Koi Member Rank = Mature Champion pip895's Avatar
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    Quote Originally Posted by DanielRix124 View Post
    I could get a t and pipe it into the 4” but would it create enough draw to do any good??

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    If it is 4" all the way - yes there will be plenty of draw but don't bother plumbing in 2" it is unlikely to draw enough.

    p.s. I agree with Andikoi - you will need a valve on each pipe - a ball valve is recommended on the BD but a slide valve is fine on the skimmer.
    Last edited by pip895; 03-11-2018 at 01:04 PM.
    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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  5. #43
    Quote Originally Posted by pip895 View Post
    If it is 4" all the way - yes there will be plenty of draw but don't bother plumbing in 2" it is unlikely to draw enough.

    p.s. I agree with Andikoi - you will need a valve on each pipe - a ball valve is recommended on the BD but a slide valve is fine on the skimmer.
    Awesome yeah I’ve got a new slide valve here just not a ball as they are a bit steep in price

    Slow and steady but got some blocks down in an hour this afternoon!




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  7. #44
    Senior Member Rank = Grand Champion andikoi's Avatar
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    Where abouts in country are you.i have a 4" ball valve i took off as it was too hard to turn.was going to strip down and clean but cant be bothered lol.andi

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  9. #45
    Quote Originally Posted by andikoi View Post
    Where abouts in country are you.i have a 4" ball valve i took off as it was too hard to turn.was going to strip down and clean but cant be bothered lol.andi
    Attleborough norfolk mate


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  11. #46
    Question The New build has started new to this!! I’m 4 courses of block in will be putting a return both ends different corners what height to people put them at ? One higher then the other?


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  13. #47
    Senior Member Rank = Grand Champion andikoi's Avatar
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    on my last pond i put mine 12" and 18" below surface on opposite corners to make a rotation in pond,but a lot of people just put them pointing towards skimmer,on new pond i have them both on same wall under my shower to push water to far end of pond,but can adjust as have them all on valves,andi

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  15. #48
    Senior Member Rank = Supreme Champion freddyboy's Avatar
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    Mine are 3 feet of the bottom under
    My skimmer. 6 feet deep. My pond is round. So no corners. So it circulate s quite good.
    And works well on the bottom with my air from bottom drain.
    Fred



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  17. #49
    Brill guys I’m looking at putting them about 2ft from the top I think either corners.

    Now looking at ordering my window! My internal length on the selected wall is 3.9m I’m thinking a 1800x700mm 25.5mm window would that be ok? Infinity too.


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  19. #50
    Bit more time on the build today.. few more courses then I’ll put my two returns in think I’m going to go 2” not 1 1 1/2” as I’ve got two 2” ball valves here unless I just get some reducers so I can use them on a 1 1/2” line..




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  21. #51
    I’m running the two returns from the UV as 1 1/2” into the pond but I’ve got 2 2” ball valves laying here brand new I suppose it would be to just buy four reducers for either side and use them in my line?


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  23. #52
    Can see light at the end of the tunnel well on the block laying anyway!

    Order my window today 2100mm long but 780mm deep 25.5mm thick.. looking forward to getting it fibreglassed then that fitted! Not The New build has started new to this!! think it’s gunna be a tad heavy!!




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  25. #53
    Senior Member Rank = Supreme Champion freddyboy's Avatar
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    Looking good mate. Is it infinity window. Or framed 4 sided. There heavyish. Looking spot on. Coming along nicely.

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  27. #54
    Extreme Koi Member Rank = Hassai davec's Avatar
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    Quote Originally Posted by DanielRix124 View Post
    Can see light at the end of the tunnel well on the block laying anyway!

    Order my window today 2100mm long but 780mm deep 25.5mm thick.. looking forward to getting it fibreglassed then that fitted! Not The New build has started new to this!! think it’s gunna be a tad heavy!!




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    When your finished get a good cover net stop all leaves from all them trees like my pond your surrounded by trees nightmare when it’s windy and they always blow off into my pond looks very nice by the way


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  29. #55
    Extreme Koi Member Rank = Mature Champion pip895's Avatar
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    Looking good.

    Did you go with 2" pipe in the end - not a bad idea as it will reduce back pressure so more flow for the same pump size.
    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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  31. #56
    Quote Originally Posted by pip895 View Post
    Looking good.

    Did you go with 2" pipe in the end - not a bad idea as it will reduce back pressure so more flow for the same pump size.
    Went for 1 1/2” mate as got so much of it laying here!


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  32. #57
    Extreme Koi Member Rank = Mature Champion pip895's Avatar
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    Quote Originally Posted by DanielRix124 View Post
    I’ve got an easy pod here was going to pump feed it to that but thinking of selling and making some money back lol


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    Just had another thought about this --

    You need to turn over your pond every two hrs minimum. This means a minimum flow of at least 14k ltrs/h for a 28k pond (16 would be a better target). If the nexus can only cope with 8k (10k at the outside) you are going to need the pod to make up the difference!
    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)

  33. #58
    Quote Originally Posted by pip895 View Post
    Just had another thought about this --

    You need to turn over your pond every two hrs minimum. This means a minimum flow of at least 14k ltrs/h for a 28k pond (16 would be a better target). If the nexus can only cope with 8k (10k at the outside) you are going to need the pod to make up the difference!
    28k? It should be 10000/11000L in total the nexus will cope With that?


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  34. #59
    Moderator Rank = Supreme Champion Feline's Avatar
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    Yes your nexus will cope with that running at 8000 lph or just over. You would need to be fairly lightly stocked though if you cannot turn the pond over at least hourly.
    Putting your pod on the skimmer line would give you some useful extra filter capacity.

  35. #60
    Extreme Koi Member Rank = Mature Champion pip895's Avatar
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    Quote Originally Posted by DanielRix124 View Post
    28k? It should be 10000/11000L in total the nexus will cope With that?
    Quote Originally Posted by DanielRix124 View Post


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    Your right - lol I have a track record of mixing gallons and ltrs


    I'm still not sure selling the pod is a good move though
    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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