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  1. #21
    Senior Member Rank = Grand Champion RoyLittle0's Avatar
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    Quote Originally Posted by Ajm View Post
    Sorry a bit slow here my heads all over and up other parts of my self . Can A retro bd can be made gravity by going through the wall

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    Most Retro BD's are 2" at best so they are usually pumped, I dont think I have seen a 4" retro bottom drain, I'm not sure you would get the flow from a 2" pipe
    4600 Gallon Concrete Block and Fiberglass
    2100 mm x 710 mm Infinity Window 32mm thick glass
    2 x Aerated Bottom Drains and Skimmer
    Filtreau HiFlow 30 Drum Filter
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    2 x 18,000 lh pumps
    Heated from house boiler through a heat exchanger
    Idealseal MS290

    My Pond Build

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  3. #22
    Extreme Koi Member Rank = Nanasai richsugden's Avatar
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    Draco drum do a retro bottom drain with 4” pipe and is gravity fed. I had a look at one in is factory looks the part and well made


    Sent from my iPhone using Tapatalk

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  5. #23
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    Cant help much Aj as I have never had a retro bottom drain so if it works like a bottom one then go for it.
    Bottom drains are a must in my opinion but if not fitted then go for the next best.
    John

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  7. #24
    Senior Member Rank = Supreme Champion Ajm's Avatar
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    Thinking a pond rip out . It's only liner so not the end of the world . Trying to fix little bits it's going to get the job done . Needs to be done right properly fitted bd pressure pipes mid returns skimmer shower . Get saving and done it right no point pissing on to get it working ok when I want it working as good as I can . Still no drum no amount of saving will get me one of those just yet . Thanks for help people . Andi I'll still be using your plan for pipe work . Where best for pipe work dbs and that sort of stuff just wanna go to one place and get every thing in one go prob pay a little more that way but just easier . I've been looking a costal koi ?

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  9. #25
    Senior Member Rank = Grand Champion RoyLittle0's Avatar
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    Coastal Koi is the best for all pipe fittings and especially valves

    Coastal Koi - Pond Plumbing - Secure Online Shopping
    4600 Gallon Concrete Block and Fiberglass
    2100 mm x 710 mm Infinity Window 32mm thick glass
    2 x Aerated Bottom Drains and Skimmer
    Filtreau HiFlow 30 Drum Filter
    Bio Chamber - 140 litres K1
    Bakki Shower - 30 KG Sakura Far Infrared Media
    2 x 18,000 lh pumps
    Heated from house boiler through a heat exchanger
    Idealseal MS290

    My Pond Build

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  11. #26
    Senior Member Rank = Supreme Champion Ajm's Avatar
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    Cheers mate seem canny good price wise. And they sort out all this 110mm 4ich confusion Haha

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    Freddyboy the legend

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    Johnathan

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  13. #27
    Senior Member Rank = Grand Champion andikoi's Avatar
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    i got all my pipe and fittings from chris at kitsu,always a good price and free delivery normally within a couple of days,chris is always happy to help and if you wanted to get it done quick they do a great finance deal,get now and spread the cost lol,,,andi

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  15. #28
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    You have a lovely pond there Aj though its not finished.
    So you have a liner fitted,bit drastic pulling it out or is it easy enough.
    Ok if you go down there a bottom drain can be fitted if you can dig beneath the wall !!
    As for pipe,I have never used pressure pipe,but dont take my advice as it is up to you,I use above ground black pipe solvent welded to drain then up to surface then push fit to valve/filter.
    All my returns to pond are 1.5ins or 2ins normal solvent weld pipe,but I am changing to 2ins thick wall flexi pipe brilliant stuff with no restrictions and easy to fit,Kitsu koi are cheap for the flexi pipe.
    John

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  17. #29
    Senior Member Rank = Supreme Champion Ajm's Avatar
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    Undermining shouldn't really be to much of a problem.doing a big enough hole filter side as to get in and weld will be the mare . A ferret I ain't. . Didn't think of flexi for returns could be some thing to look at all will come down to cost really. Am sure am part Yorkshire when it comes to spending money start sweating and every thing hahaha

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    Johnathan

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  19. #30
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    https://kitsukoi.co.uk/collections/f...=5622385704991
    I havnt used these yet but I have used the pipe and these are the cheapest I have found,good stuff.
    Solvent I use Toolstation as it is cheap and good quality but harder to fit than flexi.
    Black 4ins from wickes is good,offer at the moment is 3mtrs for £10.
    John

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  21. #31
    Senior Member Rank = Supreme Champion Ajm's Avatar
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    Cheers John thanks for that would work out cheaper and easier than pipe and fittings 90 ect . I would be boxing it all in and packing with insulation so now worry of getting a spilt off something walking on it or falling

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    Freddyboy the legend

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    Johnathan

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  23. #32
    Senior Member Rank = Supreme Champion freddyboy's Avatar
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    Quote Originally Posted by Ajm View Post
    Cheers John thanks for that would work out cheaper and easier than pipe and fittings 90 ect . I would be boxing it all in and packing with insulation so now worry of getting a spilt off something walking on it or falling

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    I have used that pipe on my grow on. from pump to fixed pipe. its very very strong. I reckon if you dropped a brick on it. it would nt touch it or damage. and you would be able to walk across it. but for obvious reasons try to install it where people aint going to trip on it. its far better then the ribbed hose. and as john said its harder to fit then ribbed hose. but good hose.

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  25. #33
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    It is incredibly strong Aj not like the ribbed stuff as Fred said,and it is quite smooth on the outside and can be solvent welded.
    John

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  27. #34
    Senior Member Rank = Supreme Champion freddyboy's Avatar
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    What i meant about harder to fit then ribbed hose. Is its not as flexible. Its easy to fit. But harder to bend if that make s sense.

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  29. #35
    Senior Member Rank = Supreme Champion Ajm's Avatar
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    Quote Originally Posted by freddyboy View Post
    What i meant about harder to fit then ribbed hose. Is its not as flexible. Its easy to fit. But harder to bend if that make s sense.

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    Nice long bend is better for flow so could be a blessing tbf. Has any one got it in to tank connector for mid returns ? If so did you weld it on .....Think I need to make that DIY over flow sooner than later like

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  31. #36
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    What I do is with my heat gun give the part I want to bend a gentle heat works great,or a blow lamp very gently and keep it moving.
    John

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  33. #37
    Senior Member Rank = Grand Champion andikoi's Avatar
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    i think if i was using it i would put tank connector with solid pipe through pond wall then a bend on outside to connect the flexi to,then you dont need a big arc of pipe to get it to attach to where tank connector is,if you get my meaning,,,andi

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  35. #38
    Senior Member Rank = Grand Champion RoyLittle0's Avatar
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    Agree with andi, I would use tank connectors and a length of pipe through the wall to a 90 degree bend then to the flexi
    4600 Gallon Concrete Block and Fiberglass
    2100 mm x 710 mm Infinity Window 32mm thick glass
    2 x Aerated Bottom Drains and Skimmer
    Filtreau HiFlow 30 Drum Filter
    Bio Chamber - 140 litres K1
    Bakki Shower - 30 KG Sakura Far Infrared Media
    2 x 18,000 lh pumps
    Heated from house boiler through a heat exchanger
    Idealseal MS290

    My Pond Build

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  37. #39
    Senior Member Rank = Supreme Champion Ajm's Avatar
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    Quote Originally Posted by andikoi View Post
    i think if i was using it i would put tank connector with solid pipe through pond wall then a bend on outside to connect the flexi to,then you dont need a big arc of pipe to get it to attach to where tank connector is,if you get my meaning,,,andi
    Yeah makes perfect sense mate cheers

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    Freddyboy the legend

    "we are water keepers first"

    Johnathan

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