Long arm that is lowered to the lagoon or lake floor that loosens the substrate enough for a low pressure high volume centrifigal pump to vacuum up and discharge the water silt, sand sludge mix The process includes a dredging barge with a tiller on a Very large lagoons where agitation alone will not suspend solids long enough for pumping.* Lagoons, ponds or lakes with bottoms of sand or heavy sediment that drops out of solution quickly Dense sludge or sediment on lake, pond or lagoon bottoms.
Shallow ponds or lagoons such as municipal lagoons where make-up or return water is available.Due to the amount of equipment and complexity of dredging, this is a more expensive option.ĭredging is the method used for small lakes, ponds and lagoons in the following situations: If an active pond, lake or lagoon is not practical toĮffectively agitate or suspend the silt, sand or solids, then dredging is the answer.
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