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#41584 05/09/07 09:56 PM
Joined: Apr 2002
Posts: 106
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Does anyone know of a design for a siphon large enough to lower the water level in a pond in a reasonable amount of time?

#41585 05/09/07 10:03 PM
Joined: Mar 2005
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How big of a pond , how deep and depth of the dam drop on the back side and how fast? There are several threads here and one includes a link to siphon size calculator. IIRC Burger posted that. I will try to find it.

Here is one

http://www.pondboss.com/ubb/ultimatebb.php?ubb=get_topic;f=20;t=001832;p=1

burgermiester posted this link on another thread:
http://cotton.pi.csiro.au/Assets/PDFFiles/WATERpak/WPAp9_11.pdf
















#41586 05/10/07 07:00 AM
Joined: Jun 2005
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While in the slow process of digging my 1.5a pond, I had to siphon it out many times. I used a 4" PVC pipe, and it usually took a day or 2. My pond's water was only 4 feet higher (4' head) than the gully into which I siphoned it. If your head is greater, it will siphon much faster.


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