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Washout (0)
Unknown_End (1)
Sluice_Valve (2)
Sewerage_Air_Valve (3)
Sewer_WAMS (4)
Sewer_Junction (5)
Rodding_Eye (6)
Outfall (7)
Non_return_Valve (8)
Lamphole (9)
Inlet (10)
Combined_Storm_Overflow (11)
Change_of_Attributes (12)
Chamber (13)
Buchan_Trap (14)
bifurcation_chamber (15)
Access_Lateral (16)
Connection_Lateral (17)
Syphon (18)
Sewerage_Duct (19)
Rising_Main (20)
Gravity_Pipe (21)
Basin (22)
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