Section 307:
INDUSTRIAL WASTE
307.1
• Waste is detrimental to the public sewer system or to the functioning of
the sewage treatment plant shall be treated and disposed of as found
necessary and as directed by the Administrative Authority or other
authorities having jurisdiction.
307.2
• Sewage or other waste from a plumbing system which may be
deleterious to surface or subsurface waters, shall not be
discharged into the ground or into any waterway unless first
rendered innocuous through subjection to some acceptable form of
treatment.
Section 308: LOCATION
308.1
• Except as otherwise provided in this Code, no excreta plumbing system,
storm drainage system, building drain, building sewer, private sewage
disposal system or parts thereof, shall be located in any lot other than
the lot where the site of the building, strutcture or premises are served
by such facilities.
308.2
• No subdivision, sale, or transfer of ownership of existing property shall
be made in such a manner that the area, clearance, and access
requirements of this Code are decreased or impaired.
Section 309:
IMPROPER LOCATION
309
• Piping, fixtures or equipment shall not be so located to interfere with
the normal function or use thereof or with the normal operation and
use of windows, doors or other required facilities.
Section 310: WORKMANSHIP
• Sec. 156 NPC 1959
310.1
• All designs, constructions and workmanships shall be in conformity with
accepted engineering practices and shall be of such character as to
secure the results sought to be obtained by this Code.
310.2
• It shall be unlawful to conceal cracks, holes, or other imperfection in
materials by welding, brazing or soldering the defects or by using
therein or thereon any paint, wax, tar, or other sealing or repair
agents.
310.3
• Burred ends of all pipes and tubings shall be reamed to the full bore of
the pipe or tubing and all chips left inside the pipe or tubing shall be
removed.
Section 311: PROHIBITED
FITTINGS AND PRACTICES
**Sec. 158 NPC !959
311.1
• No double hub fitting for lead-caulked joint in vertical position, single
or double tee Branch; single or double tapped tee branch, side inlet
quarter bend, running thread, band or saddle shall be used as a
drainage fitting, except that a double hub sanitary tapped tee may be
used on vertical lines as a fixture connection. (Approved stainless steel
bands with neoprene gaskets for jointing of hub less cast iron soil pipes
are acceptable for use.
311.2
• No drainage or vent piping shall be drilled and tapped for making
connections thereto, and no cast iron soil pipe shall be threaded.
311.3
• No waste connection shall be made to a closet bend or stub of a water
closet or similar fixtures.
311.4
• Except as hereinafter provided in Sections 812, 813 and 814 of this
Code, no vent pipe shall be used as a soil or waste pipe, nor shall any
soil or waste pipe be used as a vent. Also, single drainage and venting
systems with unvented branch lines are prohibited.
311.5
• No fitting, fixture and piping connections, appliance, device or method
of installation which obstructs or retards the flow of water, sewage or
air in the excreta and storm drainage and venting systems in an amount
greater than the normal frictional resistance to flow, shall be used
unless it is indicated as acceptable in this Code or approved by the
Administrative Authority as having the desirable and acceptable
function and of ultimate benefit to the proper and continuous
functioning of the plumbing system. The enlargement of a 76-mm closet
bend or stub to 1 02-mm diameter shall not be considered as an
obstruction.
311.6
• Except for necessary use of gate & check valves. where inter-
membering or mixing of dissimilar metals occurs, the points of
connection shall be con tined to exposed or accessible locations.
311.7
• All valves, pipes and fittings shall be installed in correct relationship to
the direction of flow.
