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  1. #1
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    A New Village House - Koi Pond

    A reminder of the the house we built in Tak Province



    For details of that construction see "A New Village House"

    Anyway, we have 5 koi in a 1 cu m pool in Bangkok, that really have to be re-housed, so we decided to build a pond in front of the house. So I started reading about koi ponds. Koi keeping is quite a sub-culture, but using the guidelines recommended on KoiPhen and other sites we opted for a simple 6 cu m pond with an upstream jar, a rill flowing into a water garden before returning the flow to the main pond. The rill would require a bridge. One pump for filter circulation and one pump on a timer for the waterfall. More details later.

    As with the main house, the idea was to give the builder drawings with rough dimensions, pipe layouts and photographs of what we wanted, and let him get on with it. (Heresy ! I hear you cry). Work in Bangkok and the drive is 6 hours. (London to Newcastle) so it was very hands-off project.

    Lets see if this gets posted. (I had forgotten how tricky posting photographs is)

  2. #2
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    pominasia,

    My compliments on a very impressive construction. I do not know much about fish but would imagine that the person responsible for your house-build should also be able to handle a spot of pond-building. I have to agree with your 'heretical' keep-one's-hands-off attitude. I have recently completed a 'remote' house-build, as I am still living and working in Bangkok and the house is in rural Udorn Thani. In my work I have to contend with disregarded instructions, impossible deadlines, disinterested colleagues, and incomprehensible requests. But I do get paid for all this, and I continue to work because I enjoy what I do. One set of headaches, for which I am compensated, is quite enough, thank you. I see no reason to look for any further sets of frustrations. Trust your builder, trust your partner, and keep your hands out of the fire.
    I believe that despite the enormous odds which exist, unflinching, unswerving, fierce intellectual determination, as citizens, to define the real truth of our lives and our societies is a crucial obligation which devolves upon us all. It is in fact mandatory.
    If such a determinations is not embodied in our political vision we have no hope of restoring what is so nearly lost to us - the dignity of man.
    Harold Pinter - on accepting the Nobel Prize for Literature.

  3. #3
    Thailand Expat terp80's Avatar
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    Smile

    Hi Pominasia. Very nice house indeed. I don't know much about Koi, other than they need clean and aerated water 24/7. I am starting a Koi pond in my build (Newbie Build in Chiang Mai) and you can follow along if you like. I met with a Koi seller (not a breeder) from Jomtien Market in CM, and he met with my builders today. Mine is a funny shape: long and thin toward a waterfall (60cm) and a rather larger rectangle with a water fountain in the middle. It will have just one 750 watt pump and 6 aerators. The filters will be one set of mechanical filters and a bunch of lava rock filters in chambers set off to the side. Photos of progress were begun today and were uploaded. Good luck with your Koi pond!

  4. #4
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    pominasia, I like the look of the house above, but when I tried to do a search I couldn't find the story. Can you post the thread please to make it easier for me.

    btw. the search feature on this site stinks.




    Edit: don't bother, I found it by looking through your previous posts, it was easy because you don't have many posts. If you were kingwilly, drmandy, or marmite I wouldn't have bothered, too many posts to sift through.

  5. #5
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    Terp80
    Yes, I've been following your build. It is of high quality, and I look forward to seeing its completion.
    In my research of koi ponds I came across the koi pond built in Ayudhya by iroc4life on the KoiPhen site. Look out for the facebook reference on the forum posting for a view of his beautiful house. It was an inspiration for my humble pond. I recommend you have a look at it.

  6. #6
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    I made a rough sketch of the pond to get the approval of the family and to see if the builder was interested


  7. #7
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    Here is an original sketch showing the flow of water. This configuration was chosen after several different layouts. It keeps all the pond features together (no hidden pump chamber or filter chambers). The filter chambers can be easily accessed, and the filter performance quickly assessed by noting the head drop across the chambers :




    There are two Bottom Drains in the main pond. They are connected to the Radial Flow Settler. Flow from the RFS passes through 3 chambers before flowing into the pump wet well intake. Flow to the wet well is under gravity. Two pumps, normally below water level, connect to the wet well, a 0.5 HP pump which operates continually pumping water to the large Jar at the upstream of the rill. The 1.0 HP pump on a time switch feeds the waterfall (which acts a bird bath when there is no flow) the Tangential Pond Return in the main pond and the two kitsch (or cute) features spouting water. By adjusting 3 valves this pump also removes waste matter from the RFS and pumps it into the garden. This pump is also used to drain the pond. The TPR feeds water into the main pond at about 30 cm from the floor, midway between the BD's, effectively stirring the water and fish debris toward the BD's, keeping the pond clean and providing exercise for the fish.
    The upstream Jar is to aerate the water (allowing bacteria to convert ammonia, and nitrites to nitrates) and to provide comforting water gurgling sounds. Plants in the rill and water garden absorb the nitrates.
    The connection between the water garden and the main pond is across a weir chamber which controls the upstream water level. The weir chamber has the overflow into the garden and the water main inflow controlled by a TESCO toilet ball valve.

  8. #8
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    Excavation begins

  9. #9
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    Main excavation complete


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    Slab and block work


  11. #11
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    Slab and blockwork and wall rebar


  12. #12
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    Pouring concrete for walls


  13. #13
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    Upstream Jar pond and rill (later widened by an on-site variation)


  14. #14
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    Pump chamber rebar


  15. #15
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    Retaining wall and filter chambers


  16. #16
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    Waterfall


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    Plastering


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    Blue plastering and sandstone tiling


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    Pumps


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    First filling



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    Grassing


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    Upstream Jar.


  23. #23
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    Waterfall and placing Bottom Drain Covers

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    Lighting


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    Lighting and bridge


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