This type of sewage disposal system does not have a leach or French drains as the effluent is carried by large pipes to a lagoon.Effluent (wastewater) disposal system Which of these fixtures does not require a plumbing trap? Service sink If the diameter of a fixture trap arm is 32mm, what is the minimum distance of the trap weir from the fixture vent? twice its diameter Plumbing traps should be placed within ____mm of the fixture and should be accessible for cleaning through a bottom opening that is closed by a plug. 600mm What is the maximum number of plumbing fixtures that a circuit or loop vent can serve or ventilate? 8 fixtures In what instance should a cleanout be located? at every change of horizontal direction of more than 22.50 degrees A gully trap, connected to the waste drainage system, is provided for this method of plumbing system.; the soil and wastewater do not combine until they reach the below-ground drainpipes. two-pipe system This type residential storm drainage system requires the digging of deep ditches and the installation of underground perforated pipes.sub-surface drainage system One of these drainage sub-systems carry only liquid discharge, from plumbing fixtures other than those fixtures receiving fecal matter.waste drainage system This method of plumbing system requires no pipe for ventilation purposes as its effectiveness depends on the depth of the plumbing trap's water seal. single stack system What type of pipe fitting is used to connect a sink or lavatory to a vertical waste pipe? sanitary tap tee
It prevents sewage system odors, gases, and vermin (mice, insects, etc.) from entering the living or work space.