Ill. Admin. Code tit. 77, § 890.420 - Pipe Cleanouts
a)
Location of Cleanouts Within a Building Drain
1) Cleanouts shall be not more than 50 feet
apart, including the developed length of the cleanout pipe, in horizontal
drainage lines of 4 inches or less size. Cleanouts shall be not more than 100
feet apart, including the developed length of the cleanout pipe, in horizontal
drainage lines of over 4 inches to 10 inches in size. Cleanouts shall not be
more than 150 feet apart, including the developed length of the cleanout pipe,
in horizontal drainage lines exceeding 10 inches in size. For underground
drainage lines exceeding 10 inches in size, manholes instead of cleanouts shall
be provided and shall be located at intervals of not more than 150
feet.
2) When it is necessary to
conceal a cleanout plug, a readily accessible covering plate or access door
shall be provided.
3) A test tee at
the base of the stack may be used as a cleanout.
4) A full size cleanout shall be located
within 5 feet of the building foundation, inside or outside, in direct line
with the building drain and sewer.
5) All cleanouts in vertical stacks shall be
located no higher than 48 inches above the floor.
b) Change of Direction. A cleanout or manhole
shall be installed at each change of direction of the horizontal building
drainage system greater than 60 degrees; the total of the fittings between
cleanouts or manholes shall not exceed 120 degrees. A manhole within a building
shall be provided with an iron cover which shall be securely bolted in place
and made gas and water-tight with a soft metallic gasket.
c) Underground Drainage. When installed on an
underground drain, cleanouts shall be extended to or above the finished grade
level; or may be extended to outside of the building. (See Appendix D:
Illustration F.)
d) Concealed
Piping. Cleanouts on concealed piping shall be extended through and terminate
flush with the finished wall or floor; or pits or chases may be left in the
wall or floor, provided they are of sufficient size to permit removal of the
cleanout plug and cleaning of the system. (See Appendix D: Illustration
G.)
e) Base of Stacks. A cleanout
shall be provided at, or no more than 4 feet above, the base of each vertical
waste or soil stack.
f) Buildings
with Slab Floors. For buildings with a slab floor or with less than a 36 inch
crawl space under the floor, or where a stack cleanout is not otherwise readily
accessible, one of the following shall be provided in lieu of a cleanout at the
base of the stack:
1) The building drain shall
be extended to the outside of the building and terminated in an accessible
cleanout.
2) An accessible 2 way
cleanout shall be installed in the building drain downstream from the stack
provided that no other drainage pipe connects to such pipe inside the walls of
the building unless it has its own cleanout at the base of the stack or
extended outside the building.
g) Direction of Flow. Every cleanout shall be
installed so that the cleanout opens in a direction opposite to the flow of the
drainage line or at right angles thereto, except as permitted in subsection (f)
of this Section.
h) Cleanout Plugs.
A cleanout shall not have a plumbing fixture installed in it or be used as a
floor drain.
i) Cleanouts shall be
of the same size as the pipe they serve up to a maximum of 6 inches, and at
least 6 inches for larger pipe.
j)
Cleanout Clearance. All cleanouts shall have a clearance of 18 inches for the
purpose of rodding. (See Appendix D: Illustration H.)
Notes
Amended at 28 Ill. Reg. 4215, effective February 18, 2004
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