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Home: KOI Talk: Pond Construction & Water Filtering System:
Building a koi pond

 






 


HT3868
New User

Aug 18, 2008, 12:42 PM

Post #1 of 10 (1112 views)
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Building a koi pond Can't Post

Hi everyone. I'm thinking of doing a square 12 ft pond with the depth of 3ft. The contractor which is carrying out our other work claims that he has done quite a number of ponds. So, we're thinking of letting him do the job. As I know filtration is very critical when dealing with koi ponds. Are there any specific requirements that I should follow? or anything I show stay away from? I've some experience with fishes in but not keeping them in ponds so I'm still fairly new at this. Thanks in advance.


Epal63
Koi Lover

Aug 18, 2008, 3:22 PM

Post #2 of 10 (1094 views)
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Re: [HT3868] Building a koi pond [In reply to] Can't Post

Hi,

If the contractor claimed he has done a number of ponds, and before you give him the job, I suggest you do the following:

(a) Ask him to bring you to visit those ponds he has done. Ask him to explain to you their design - how the water flow between the pond, and the filter.
(b) Get him to sketch out the pond design, filter sytem, piping - for your pond.

Then you can post them here and all the cifus will be able to comment and advise you accordingly.


(This post was edited by Epal63 on Aug 18, 2008, 3:24 PM)


water
Koi Lover

Aug 19, 2008, 9:49 AM

Post #3 of 10 (1048 views)
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Re: [HT3868] Building a koi pond [In reply to] Can't Post

A long rectangle pond is better.... with a 6 to 8 ft width x "the longer the length" is better dimension - if you can afford the space. Also, 3 feet is rather shallow, 5 to 6 feet of water depth is better. Then again, it depends on the quality and type of kois you intend to keep. My advice is to build the optimum pond as your hobby with koi will get yourself hooked and you will be gradually improving the quality of kois and getting to the jumbo level of fishes quickly. It would be difficult when you get the desire to own good Jumbos but only to discover that you didn't design your pond for it.

So, if the contractor did not advise this - he may have build ponds for other landscape / gold fish type and may not be well versed with Koi pond. Filtration of about 30% rough guide but efficency in water flow, dwell time of water, type of media, interaction surface area of media are factors which are equally important. Current Flow within the pond as well as water change rate per hour and population in the pond all are key factors.

Plan carefully and read all the thread on pond building in this forum - there is a wealth of good information here and just by reading all, would probably make you better than your contractor.... Best of luck.


(This post was edited by water on Aug 19, 2008, 9:50 AM)


kelvinbay
Koi Lover

Aug 19, 2008, 10:52 AM

Post #4 of 10 (1038 views)
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Re: [Epal63] Building a koi pond [In reply to] Can't Post

Hi,

Epal36 is absolutely right, must engage a experience contractor for pond construction. I am speaking from my recent experience; I engaged a friend who is in water proofing industry but have no experience in pond building. Although I pay below market price but was faced with all kind of problems including leakages which took me more than 2 months to eradicate.

My advice : look for a contractor with good track record to avoid headache. Cheers !


HT3868
New User

Aug 19, 2008, 11:51 AM

Post #5 of 10 (1029 views)
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Re: [Epal63] Building a koi pond [In reply to] Can't Post

I've visited one of the pond he was constructing a few months back and since it was at an early stage, I couldn't tell anything set up. We have decided to go with a 12 ft. x 8 ft. instead of 12ft. x 12ft. pond. The filtration system will be 3ft. x 8ft. Will that be sufficient for the pond size? As far as the piping and the chambers is concern, the contractor told me to give him a design and he'll do it accordingly. Is there an ideal filtration setup that i should be going with? Thnaks again.


HT3868
New User

Aug 19, 2008, 12:18 PM

Post #6 of 10 (1028 views)
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Re: [water] Building a koi pond [In reply to] Can't Post

The current size is now set at 12ft. x 8ft. The depth will also be fixed at 3ft. to avoid potential problem with children playing around the area. The filtration area is restricted to 8ft.x 3ft. x 3ft. which translates to 432 gallons for a 1728 gallon pond. It's not 30% of the total pond volume but close.


Epal63
Koi Lover

Aug 20, 2008, 9:02 AM

Post #7 of 10 (975 views)
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Re: [HT3868] Building a koi pond [In reply to] Can't Post

If I were you, I would still insist that the contractor show you an operational pond he built, ie with Kois swimming in it. There, you also get a chance to speak to the owner on any issues he encountered while the pond was built - ie how experience is the contractor.

Judging from the comment that he asked you to give him the filter design, I seriously doubt if he is a season koi pond builder.


HT3868
New User

Aug 20, 2008, 1:16 PM

Post #8 of 10 (958 views)
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Re: [Epal63] Building a koi pond [In reply to] Can't Post

I'll be seeing him again this weekend so let's see what he has to say. Well, I'm planning on doing 2 filters side by side. One which is wet and the other one dry containing only bio balls and other medias. I think it's better if I choose a design that is proven than just letting him create whatever that is easier for him to build.


Epal63
Koi Lover

Aug 25, 2008, 1:50 PM

Post #9 of 10 (872 views)
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Re: [HT3868] Building a koi pond [In reply to] Can't Post

It would be nice if you could sketch and show us the filter design and how it links to your main pond.


DavidSoon
Koi Lover


Aug 25, 2008, 5:52 PM

Post #10 of 10 (860 views)
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Re: [HT3868] Building a koi pond [In reply to] Can't Post

Hi HT3868 ,

Would also suggest you seek a second opinion from another Koi Pond Contractor . Minimal problems over the pre/post construction definitely what we look for when spending money . Diamond Koi farm - Mr Lee and Max Koi Farm - Max Ng are pretty experienced with pond design and construction as well as filter media/system for Koi Keeping .

Call them up or some other experienced Contractor for 2nd opinion and I believe you will face lesser headache working with experienced Koi Pond Contractor instead of one who merely construct pond but uncertain of what the pond is used for .

Just a suggestionSmile

Cheers
David

 
 
 



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