Plumbing Code | Drainage and Sewer

_{Shall discharge outside of the building or to gutter and not connected to soil and waste pipe systems}

Rainwater drains

_{Drainage fittings shall allow a slope of _________.}

2 %

_{Slope between manholes}

2 % or 20 mm/m

_{________ allowed slope for manholes due to following constraints:}

• _{Excessive depth of proposed drainage line}

• _{Structural and geological features of terrain}

• _{Existing adverse in arrangements of building}

1 % or 10 mm/m

_{Designs, constructions and workmanship shall conforme with __________________.}

Accepted Engineering Practices

_{a 90 degree bend also means ________.}

1/4” bend

_{a 60 degree bend also means _______.}

1/6 bend

_{a 45 degree bend also means ________.}

1/8 bend

_{a 22 ½ degree bend also means ______.}

1/16” bend

_{Enumerate the approved fittings for a horizontal to vertical drain connection.}

• 45 degree wye branches

• 60 degree wye branches

• Combination wye + 1/8 bend

• Sanitary tee

• Longer sweeps

_{Enumerate the approved fittings for a horizontal to horizontal drain connection.}

• 45 degree wye branches

• Combination wye + 1/8 bend

• Longer sweeps

_{Enumerate the approved fittings for a vertical to horizontal drain connection.}

• 45 degree wye branches

• 60 degree wye branches, if in true vertical position

• Longer sweeps

_{No galvanized wrought iron or galvanized steel pipe shall be used underground and shall be kept ___________ above ground.}

at least 152 mm

_{_________________ shall be used in high-rise building with discretion of the Master Plumber / Designer and with full consent of the owner.}

ABS and PVC DWV

_{minimum depth of vitrified clay piped below ground}

0.3 m

_{threads of drainage fittings shall be tapped to allow ____ grade.}

2 %

_{minimum dimension of tailpiece, continuous waste, or waste and overflow for sinks, dishwashers, laundry tubs, bathtubs, urinals}

38 mm O.D.

_{minimum dimension of tailpiece, continuous waste, or waste and overflow for Lavatories, drinking fountains}

32 mm O.D.

_{Clotheswasher in groups of 3 or more shall be rated at how many fixture units each for he common horizontal and vertical waste pipe sizing?}

6 fixture units

_____________ shall be computed at 6 fixture units when determining septic tank size.

Water closets

_{Double Sanitary Tee may be used if the barrel of the fitting is ______________ than the largest inlet side.}

2 pipe sizes larger

_{fixture unit for a flow up to 0.47 l/s}

1 FU

_{fixture unit for a flow of 0.50 to 0.95 l/s}

2 FU

_{fixture unit for a flow of 1 to 1.89 l/s}

4 FU

_{fixture unit for a flow of 1.95 to 3.15 l/s}

6 FU

_{1 gpm = _____ l/s}

0.063 l/s

_{maximum water closet or fixture unit loading for vertical pipe}

4 water closets or 6 fixture unit traps

_{maximum water closet or fixture unit loading for horizontal branch}

3 water closets or 6 fixture unit traps

_{multiplier factor for horizontal fixture units for 1% slope}

0.8

_{minimum size of individual vent}

32 mm or ½ diameter of drain

_{needed protection for fixtures located below crown level of the main sewer}

Sump or Receiving Tank

_{minimum size of any pump discharge from a sump serving a water closets}

50.8 mm diameter

_{number of fixture units allowed for each 0.063 l/s of flow or each gpm flow.}

2 FU

_{Sumps and receiving tanks for public use shall be provided with _____________ or _______________.}

Dual pumps or ejectors

_{minimum distance of lowest inlet to tank above the high water}

51 mm

_{minimum _________ vent of sump shall extend separately through roof}

51 mm

_{minimum air pressure for air tank for the height the sewage is raised}

3 kg of each meter

Cleanouts shall be located at each run of piping more than 15 meters