I found this:

http://www.piranhapumps.com/mini_dredges.html

Rather than own one, I'd like to rent one or have somebody come and do it for me but, I am giving some thought to the idea of buying one and training an operator as a business venture.

It looks like providing the service would require a lot more than just this machine, trailer, and truck though. I'm thinking you'd need a way to be able to dig a hole away from the pond to hold the sludge and then be able to cover it over since that stuff really STINKS to high-heaven! wink

If you're too scared to throw that bait where the fish are, why did you tie it on?