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Thompson Water, Carr and Common is a 154.7-hectare (382-acre) biological Site of Special Scientific Interest north of Thetford in Norfolk. [1] [2] Most of it is managed by the Norfolk Wildlife Trust as Thompson Common. [3] It is a Nature Conservation Review site, Grade I, [4] and part of the Norfolk Valley Fens Special Area of Conservation. [5]
Water seal may refer to: Liquid trap seal in plumbing traps; Underwater seal in pleural drainage apparatuses; Waterproofing This page was last edited on ...
During the Vietnam War at Chu Lai in 1967 MCB 71 had an Under Water Construction Team search the Tra Bong River for a missing Squad of Marines. Their efforts made publication in Stars and Stripes . In 1974, several Underwater Demolition Team divers, primarily from UDT-13, helped establish the first independent UCT teams 1 and 2.
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A trap primer (or trap seal primer) is a plumbing device or valve that adds water to traps.The water seals in traps are needed to prevent sewer gases from entering buildings, but because this water is exposed to the air, it is subject to evaporation over time in infrequently used floor drains, leading to the release of sewer gas into the environment.