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  1. #81
    Extreme Koi Member Rank = Mature Champion pip895's Avatar
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    Quote Originally Posted by Djstiles999 View Post
    Probably why I had insulation in the design and building a really good cover. Wasn’t intending to heat at all but just curious as to options
    Good call on the insulation & cover - I would reckon on being a bit more modest on the heating side - just using a heat pump to even things out and raise the spring/autumn temperature by few degrees. Then you could get away with something more mainstream like a 15kw HP. Something that could be added a year or two down the line.
    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)

  2. #82
    Senior Member Rank = Jussai Djstiles999's Avatar
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    A slightly random question - given the size of the pond should I lay the base then start the block work or do footings and lower blocks then put in the base? Not sure which is likely to be strongest? Previously squeezing every ounce of structural strength wasn’t a big issue
    Last edited by Djstiles999; 23-01-2019 at 09:59 PM.

  3. #83
    Senior Member Rank = Jussai Djstiles999's Avatar
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    Well taken the back gate outvready for the digger to trundle through on the 9th, was massively relieved to find a way of getting a one in as really to old for a lot of spadework. Got a guy on the machine and 3 of us on barrows so 2 days should see us done and dusted. Fortunately we can fill in the dip behind the house so no need for skips which saves cost and will give some speed. Better yet the full narrows will be going downhill - how rarely that happens!

    Taken the old pond out and a load of block work, seems the previous owner went for 3 liners one on top of the other so guess he had a leak!

    Horrible weather yesterday so got cold wet and muddy, typically dry today! Bit more to do next weekend then ready to go

    Did some pre Brexit planning and got my drums in, as they came from Holland seemed a sensible excuse to buy some toys now rather than wait. Really pleased with them and the service and price from Kings Lynn Koi.

    Just working out size of bio box to send to JBR to nail final design and get those on order too.

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  5. #84
    Senior Member Rank = Jussai Djstiles999's Avatar
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    Two very large bio boxes, bottom drains and pipe work ordered from JBR, think I’m committed now ��

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  7. #85
    Extreme Koi Member Rank = Sansai Hawk101's Avatar
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    Quote Originally Posted by Djstiles999 View Post
    Two very large bio boxes, bottom drains and pipe work ordered from JBR, think I’m committed now ��
    What size bio chambers have you gone for?

  8. #86
    Senior Member Rank = Jussai Djstiles999's Avatar
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    Went 1,800mm by 750mm by 1,050 tall, will be around 1,000 litres of water in each (I’ve ordered two) so don’t think I’ll have an K1 capacity problem anytime soon. Looking to add a shower on outlet too as well as an easypod in skimmer (which I’ve managed to source).

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  10. #87
    Senior Member Rank = Jussai Djstiles999's Avatar
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    Advice needed - what drop would you go for to a bottom drain on a 8ft slope? 4” top of slope to bottom enough on fibreglass?


    Sent from my iPhone using Tapatalk
    13,243 gallons, Filtreau HF30’s K1 capacity of 1,400l, Bakki Shower, BHM and understanding wife

  11. #88
    Extreme Koi Member Rank = Mature Champion pip895's Avatar
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    Many people go with completely flat with just some filling in at the corners, so you should be fine.
    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. #89
    Senior Member Rank = Jussai Djstiles999's Avatar
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    Digging all weekend, the hole looks a lot larger than anticipated and the piles of dirt look like mountains! Saturday was dry so 3 barrows servicing a mini digger. Rain overnight made the ground impossible for barrows on Sunday so hired on a mechanical barrow - a proper boys toy!

    Photo of the mound of earth is from Saturday, we doubled it on Sunday. The photos don’t really show the scale of the hole we’ve dug so I’ll add something next week. Got the digger back next Saturday to finish the hole, tidy it up and then put the trench on for the footing.

    Had all the pressure pipe delivered from JBR for the drains etc. having a bit of a panic attack about solvent welding it all without cocking it up, happy to take advice from anyone on how to avoid half inserted pipes ��

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  15. #90
    Senior Member Rank = Grand Champion andikoi's Avatar
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    looking good mate,as for the solventing,2 people always,one holding what your going into and the other holding whats getting push in,and solvent both pieces liberally,this helps it slide in if both are well lubricated,andi

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  17. #91
    Senior Member Rank = Jussai Djstiles999's Avatar
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    Well finished digging the hole, just over 7 foot down at the decking end! Estimated that we have now moved around 90 tonnes of earth no wonder I hurt
    Attached Images Attached Images

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  19. #92
    Senior Member Rank = Rokusai Rayman's Avatar
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    Quote Originally Posted by Djstiles999 View Post
    Went 1,800mm by 750mm by 1,050 tall, will be around 1,000 litres of water in each (I’ve ordered two) so don’t think I’ll have an K1 capacity problem anytime soon. Looking to add a shower on outlet too as well as an easypod in skimmer (which I’ve managed to source).
    Just be sure to check the quality of all the welds as there have been a few on here that have had problems, including me. They did offer to put any issues right so from a customer service point of view they were good. You just don't need the hassle of finding leaks down the line.

    You will need to ensure the units are absolutely level and square because at thise sizes they may well flex out of shape more than you would like. Mine has but the lid keeps it in shape.

    Sent from my SM-G965F using Tapatalk

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  21. #93
    Senior Member Rank = Rokusai Rayman's Avatar
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    Quote Originally Posted by Djstiles999 View Post
    Well finished digging the hole, just over 7 foot down at the decking end! Estimated that we have now moved around 90 tonnes of earth no wonder I hurt
    Wow that is some hole.........and slope! Hope you have had a read of Eifions build. Slope was worse but sample principles apply to blockwork. Love the size of this and am following along. Good luck with everything.

    Sent from my SM-G965F using Tapatalk

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  23. #94
    Senior Member Rank = Jussai Djstiles999's Avatar
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    Yes I read, and saw what he went through although I admire his determination to see it through.

    He went block on side where I’m going block on side and end in giving an 18” thick wall, steel lath tie in, piers every 6 foot and everything crossed. Means one hell of a lots of blocks but should be solid. I’ll be 5 foot out the ground at the far end but 2 foot in. Also have a platform for filters which will give some extra support. Scary though!

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  25. #95
    Extreme Koi Member Rank = Supreme Champion john1's Avatar
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    Sounds a good plan DJ.
    John

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  27. #96
    Senior Member Rank = Jussai Djstiles999's Avatar
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    Bottom drains in place and no leaks
    Attached Images Attached Images

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  29. #97
    Senior Member Rank = Grand Champion RoyLittle0's Avatar
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    Looking good, make sure you fill them full of water before you concrete, this will stop them floating to the top of the concrete, also you need to dig under them and put a layer of concrete under the drains themselves, if you think about the design of the drains you are only relying on the weld to hold all the weight of the water above, without a solid base this could push the bottom out
    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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  31. #98
    Senior Member Rank = Jussai Djstiles999's Avatar
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    Building on top of rock so fortunately a very solid base. Good shout on filling pipes with water though, hadn’t thought of that. Currently full as I’m checking for leaks so I’ll leave it in there

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  33. #99
    Senior Member Rank = Grand Champion RoyLittle0's Avatar
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    I did put a 1 1/2 inch slope on my concrete to the bottom drains, the only reason i did it was to use up the concrete in the hole, I just pushed it to the outside, which created the slope, It wasn't my intention to do that its just the way it worked out, not necessary in my opinion but wont do any harm.

    I didn't have any problems with the solvent welding, I did in in full sun and 27+ degrees last year, its all about preparation and use plenty of solvent weld on both pieces, I managed on my own, so its not that hard
    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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  35. #100
    Senior Member Rank = Grand Champion RoyLittle0's Avatar
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    Quote Originally Posted by Djstiles999 View Post
    Building on top of rock so fortunately a very solid base. Good shout on filling pipes with water though, hadn’t thought of that. Currently full as I’m checking for leaks so I’ll leave it in there
    Rock maybe a solid base but unless its 100% flat against the bottom drain base it will cause an air gap, water pressure from above on the drain will mean you only have 8mm of plastic holding in 30+ tonne of water, I did a lot of work in Norway some years ago on a salmon farm and that building was built on granite, everything under the holding tanks had 8 inches of concrete and 2 layers or rebar even on top of the granite, so it may seem strong but it has cracks and weak points all the way through it
    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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