A. Leader.
B. stack.
C. Main.
D. Riser.
A. Leader.
A. Vent stack.
B. local vent stack.
C. Riser.
D. Stack vented.
B. local vent stack.
A. Mechanical joint.
B. flared joint.
C. Putty joint.
D. Glued joint.
A. Mechanical joint.
A. Parallel lines.
B. offset.
C. Return lines.
D. Changes of direction.
B. offset.
A. Double check valve with two gate valves.
B. pressure temperature and relief valve.
C. Double pressure temperature and relief valve.
D. Reduced pressure principle back-flow preventer.
D. Reduced pressure principle back-flow preventer.
A. Check valve.
B. backwater valve.
C. Pressure relief valve
D. T&P valve.
C. Pressure relief valve
A. Waste pipe.
B. soil pipe.
C. Vent through roof.
D. Relief vent.
D. Relief vent.
A. Stack vent.
B. stack.
C. Soil stack.
D. Leader.
B. stack.