Gully Emptier (often called Gully sucker) are a special type of truck that are common in the highway maintenance or environmental services fleets of local councils. The lorry carries a vacuum tanker with a special suction boom with a high velocity jet unit and a supply of water. The unit jets the drain gully's to loosen the silt and sucks it up into the tanker unit by a vacum pump, for transport to a disposal point after filtering to remove the contaminated water from the solids. Most are operated by local councils and the highways agency's partners for cleaning street (drainage) gully catch-pits of silt washed off the roads.
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