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Home: KOI Talk: Pond Construction & Water Filtering System:
How to calculate?

 





 


Toshi
Koi Lover

May 2, 1999, 3:40 PM

Post #1 of 7 (691 views)
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How to calculate? Can't Post
i am currently building a new waterfall together with a pond. My pond is 11ft by 10ft and 4ft deep.My i know how many TON for my pond. Pls teach my how to calculate into Ton!!And can you tell me what size of filter shall i build ??thank you very much!!


Khoobg
Webmaster


May 3, 1999, 12:05 AM

Post #2 of 7 (691 views)
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Hi Toshi,

The easy way to calculate the tonnage of the pond is to convert the dimension into metric value.

1 metre = 3.281 feet

Hence 1 feet = 0.3048 m

Hence your pond volume are
(11 x 0.3048) x (10 x 0.3048) x (4 x 0.3048)
= 12.45 cubic metre

Remember 1 cubic metre = 1000 kg = 1 ton

Hence your pond tonnage is 12.45 tons

The filter size should preferably to be at least 30% of the pond surface, ie 33 square feet or in 11ft x 3 ft in dimension. If situation allowed, try to build a bigger filter.

I hope that help Smile


Khoobg
Webmaster


May 3, 1999, 12:12 AM

Post #3 of 7 (691 views)
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How to calculate? [In reply to] Can't Post
Hi Toshi,

Please read this thread if you have not http://www.koi.com.my/ubb/Forum6/HTML/000005.html . It will be helpful to you. [biggrin]



HansHam
Koi Lover

May 3, 1999, 1:49 AM

Post #4 of 7 (691 views)
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Hello Toshi!
As Mr. Khoo mention,make your filter bigger,as you need a mechanichal filter, and settlement chamber,the 30%is only bio.filter.A suggestion make your pond a minium depth of 5ft.the filter depth of 1mtr.is ok.
Regards Hans


Marine
Koi Lover

Dec 28, 2000, 11:56 PM

Post #5 of 7 (691 views)
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How to calculate? [In reply to] Can't Post
Hi all,

Just want to clarify:

In the calculation of pond volume, do you include the filter volume as well ? e.g for a 10ft by 6ft by 3ft pond with a built-in filter of 4ft by 6ft by 3ft (which means the actual pond size is 6ft by 6ft by 3ft), what would be the actual pond volume ?

Thanks.


Mark
Koi Kichi

Dec 29, 2000, 2:31 AM

Post #6 of 7 (691 views)
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How to calculate? [In reply to] Can't Post
When we talk about the size of a pond, we basically are talking about the total volume of water (ie 6x6x3) where our fish have access to. So, I will exclude the filter compartment(4x6x3) when calculating the volume of the water.

Let's hear from the rest.

(This post was edited by Mark Richman on Apr 12, 2002, 2:00 PM)


Ken Sutanto
Koi Lover

Dec 31, 2000, 11:33 AM

Post #7 of 7 (691 views)
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How to calculate? [In reply to] Can't Post
Yes, I have same idea with Mark, when we talking about size of pond , it is the tonnage of the water excluding filter.
Also the height is calculated based on the water level / the height of water, not the height of pond.



 
 
 



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