A person who installs pipes, fixtures and other apparatus to convey and supply water in buildings and to dispose and discharge waste water., carpenter, plumber, mason, mechanic, 2. It is a receptacle or vault used to collect organic waste discharged from the house sewer., septic tank, water tank, manhole, waste tank, What do you call those flexible waterproof ribbon for covering threaded pipes joints to prevent leakage?, rubber bond, masking tape, teflon tape, tape, 4.The semi-liquid substance accumulated at the bottom of the septic tank., scum, sedement, sludge, slit, 5.The pipe that conveys waste from various fixture other than from the water closet., waste pipe, soil pipe, vent pipe, drain pipe

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