I have limited experience with both companies. THey use divers to move the end of the suction hose along what they call the "bowl" of the pond.Prices are around $1700 per day and they can do about 1/2 acre per day depending on amount of sediment. Also, water depths around 3 feet or less can't be done due to cavitation at the surface. It is very physically demanding. If someone had the diving equipment, you could rent the trash pump. I am reasonably sure that they stay in states surrounding Wisconsin and they will probably have a waiting list. Plants growing will clog the pump and would need to be treated. They also recommend a diffused aeration system to stop the sediment from accumulating again.
Robert B
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