about moving sand with a water dredge

[MATAKI2000]

Hi All,
anyone could tell me, how many feet above the water line a water dredge can lift sand and gravel ? anda airlift ?
I am doing some dredging task and I want to find the cheapest and practical way to lift material from a a little pond 10' deep, lifting material 8' above the water. I eventually can get electricity. Thanks.

 

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[Sandman]

The information you need is probably at this site. http://www.keeneeng.com/

 

[MATAKI2000]

Sandman. I'll contact them. Thanks !!