The drainage system of every house or building shall be separately
and independently connected with the city sewer, except that fixtures
in outhouses and auxiliary buildings on the same lot may be connected
to the main building sewer. This provision shall also apply when two
(2) dwellings are erected on the same lot, one behind the other.
(1987 Code, sec. 5-201)
When there is no city sewer available, an approved septic tank
shall be used with the approval of the city health department. Application
for the use of a septic tank must be made to the city health department
and the installation of such septic tank shall be under the supervision
of the city sanitary engineer. Plans and specifications for septic
tanks shall be obtained from the city health department.
(1987 Code, sec. 5-202)
Old house plumbing may be connected to the city sewer only when
it is found on examination by the plumbing inspector to conform in
all respects to the requirements of this division. When making additions
or extensions to old buildings where the house sewer is under such
extensions thereby making the house sewer a part of the house drain,
such portion, if of any material other than cast iron, shall be removed
and replaced with cast-iron soil pipe to a point two (2) feet outside
of the new building line.
(1987 Code, sec. 5-203)
No person shall tap into or connect with any public sanitary
sewer, or connect or cause to be connected any plumbing to such public
sewer or to any house drain or house sewer leading to such public
sewer, without first obtaining the proper permits for such purpose
and having the work approved by the plumbing inspector.
(1987 Code, sec. 5-204)
It shall be unlawful for the owner, occupant or person in control
of any premises to discharge, or permit to be discharged, into the
city sanitary sewer system or into any private sewer leading to such
system, directly or indirectly, any gasoline, benzine, naphtha or
other volatile liquids which are likely to produce an explosive gas
when exposed to the air, or any strong acid, alkali, oil, tar or other
substance or compound, the action of which will be detrimental to
the proper purifying action in any sewage treatment plant established
or operated by the city, or that will be injurious to the sewer system
or such plant itself, or any vapors, gases or fumes from any commercial
or industrial occupation or business, or any commercial or industrial
water or refuse.
(1987 Code, sec. 5-205)
Water from any car-washing rack must not enter the sanitary
sewer or storm sewer unless an approved sand trap is used. Specifications
of the same may be provided by the plumbing inspector.
(1987 Code, sec. 5-206)
House sewers shall be run in practical alignment and grade of
not less than one-eighth of an inch fall per foot, and shall have
a cover of not less than six (6) inches at the building and at least
twelve (12) inches below the established gutter grade of any street
or alley at the point where such sewer line crosses the property line
to connect with the sewer main.
(1987 Code, sec. 5-207)
Durion pipe and fittings or other approved acid-resisting materials
may be used where required to resist acids.
(1987 Code, sec. 5-208)
All soil pipes receiving discharges from fixtures and all vent
lines must be of standard cast-iron, brass pipe (iron pipe sizes and
weights) with standard pipe thread with recessed drainage fittings,
hard-tempered copper tubing with cast brass recessed drainage fittings,
hard-tempered copper tubing with cast brass recessed drainage fittings,
lead pipe not lighter than seven (7) pounds fourteen (14) ounces per
foot for four (4) inches, and four (4) pounds twelve (12) ounces per
foot for two (2) inches, or plastic (schedule 40 PVC and SDR 35).
All copper under slab must be type L. All soil pipes shall be considered
in the building until connected at a central point to the building
sewer.
(1987 Code, sec. 5-209)
Cast-iron soil or vent pipes shall be of the bell-and-spigot
type and the joints shall be firmly packed with oakum and secured
with molten lead not less than one inch deep, and caulked until perfectly
tight joints are secured. All joints on lead pipe, or between lead
and brass pipe, must be wiped joints, known to the plumbing trade
as round or branch pipe joints. The drilling and tapping of house
drains, waste or vent pipes and the use of saddle hubs and bends are
prohibited.
(1987 Code, sec. 5-210)
All changes in direction shall be made by the use of wyes, combination
wye and eighth bends, long-sweep quarter bends, sixth, eighth or sixteenth
bends. Sanitary tees and crosses may be used only in vertical lines.
Quarter bends may be used in soil and waste lines where the change
in the direction of flow is from horizontal to vertical. The foot
of all stacks shall have a wye and eighth bend, combination wye and
eighth bend, long sweep quarter bends or two (2) eighth bends where
the change is from vertical to horizontal.
(1987 Code, sec. 5-211)
Tapped tees may be used in vertical stacks for lavatories or
sinks or tapped cross from two (2) fixtures of the same trap level.
All arms must be of L weight copper, brass or lead. Where copper is
used, all fittings must be sweated. When lead is used, if solder nipple
is used, it must be wiped to lead and flange wipe joint where trap
is wiped in. No tubular traps are to be used unless the flange is
wiped or sweated. One (1) lavatory or one (1) sink may enter a four-inch
vent stack by means of a tapped fee, or two (2) of these fixtures
by means of a tapped cross. All sink arms shall be of one and one-half
inch pipe, only one (1) fixture allowed on each arm. The lavatory
arm may be one and one-quarter inch pipe. No arm shall be longer than
thirty (30) inches. A single lavatory may be vented with one and one-quarter
inch copper pipe where waste is of one and one-half inch copper pipe.
(1987 Code, sec. 5-212)
All horizontal soil and waste pipes must be graded and given
uniform fall, and if located above the ground must be supported by
piers built of masonry or suspended from beams or joists every five
(5) feet in back of hubs by iron hangers of not less than eighteen
(18) gauge metal.
(1987 Code, sec. 5-213)
Every building in which a water closet is installed shall have
at least one (1) three-inch soil pipe waste and vent stack and shall
continue its full size to at least twelve (12) inches above the roof
and not less than ten (10) feet above the ground, except on an all-copper
plumbing system which may be one (1) size smaller and in accordance
with the Standard Plumbing Code.
(1987 Code, sec. 5-214)
Ferrules shall be of a good quality of brass, composed of a
mixture that will fuse readily with plumbers’ solder, free from
sand holes, flaws or other defects, uniform in thickness, at least
four and one-half (4-1/2) inches long, and of the following sizes
and weights:
|
Inside Diameter
|
Weight
|
|---|---|
|
2 inches
|
1 lb. 4 oz.
|
|
3 inches
|
1 lb. 14 oz.
|
|
4 inches
|
2 lb. 8 oz.
|
(1987 Code, sec. 5-215)
The lead traps, bends and stubs shall be six (6) pounds per
square foot and there shall not be less than four (4) inches of lead
between the wiped joint and the finished floor. All lead bends under
closet bowls shall be of not less than four-inch pipe.
(1987 Code, sec. 5-216)
A four-inch cleanout plug fitting must be on the house drain
two (2) feet outside the building brought up flush with the top of
the ground and visible. Sink cleanouts must be exposed on the outside
wall. No tapped tees shall be used as a cleanout fitting.
(1987 Code, sec. 5-217)
All revents may be of one and one-half inch copper for minor
fixtures from the waste tee through the roof or tied into the vent
stack. All washing machines connected to a sanitary sewer shall be
connected by means of a proper trap and shall be vented except where
a trap is installed in a sink line by means of a Y or TY when the
inlet opening of said trap is not over thirty (30) inches off the
sink line. The trap shall have an accessible cleanout at the trap.
The drain line from the trap to the machine must not be less than
one and one-half inch copper or cast-iron pipe and not over sixteen
(16) feet long.
(1987 Code, sec. 5-218)
Every fixture having a waste pipe shall be separately and independently
trapped with a water-sealing trap placed as near the fixture as practical
and not more than thirty-six (36) inches from the fixture, except
that a set of not more than three (3) laundry traps or lavatories
may connect with a single trap. No fixture shall be double-trapped.
(1987 Code, sec. 5-219)
Every trap shall be protected from siphonage or air pressure
and if over thirty-six (36) inches from a continuous vent shall be
separately vented, except that each battery of two (2) to eight (8)
fixtures connected in series consisting of water closets or urinals
in toilet rooms on the same floor may be installed with a system of
loop venting by bringing a vent the same size as the waste line up
between the last two (2) fixtures and returning full size to the main
vent stack not less than forty-two (42) inches above the floor, or
continuing separately through the roof full size, thus forming a circuit
vent system. Where fixtures discharge above such branch, each branch
shall be provided with a relief vent at least one-half the diameter
of the soil or waste branch, taken off in front of the first fixture
connection.
(1987 Code, sec. 5-220)
When an additional closet is set on a four-inch branch waste
line thirty (30) feet or less in length from a main house drain or
soil line within the same building, it may be vented with a two-inch
vent. One (1) minor fixture, except a kitchen sink waste, will be
permitted to enter such vent line.
(1987 Code, sec. 5-221)
Two (2) fixtures of the same type whose wastes enter the stack
by means of a sanitary cross may have a common waste and vent and
each fixture shall be individually trapped.
(1987 Code, sec. 5-222)
Crown venting shall be avoided. A heel-inlet quarter bend may
be used when venting a closet if used in a vertical position. When
it becomes necessary to flat-vent a trap, such as under floors, the
flat vent shall be carried to the nearest partition or wall and changed
to the vertical. All horizontal vents below the floor shall be constructed
of copper or cast-iron pipe. When a vent pipe from a trap is connected
into another vent, the connection shall be made at least one (1) foot
above the highest fixture.
(1987 Code, sec. 5-223)
Stacks and vents shall not terminate underneath cornices or
in chimney flues, but shall extend through the roof and terminate
not less than twelve (12) inches above the roof and be properly flashed,
or when the roof is used for purposes other than weather protection,
then such vent shall not be less than five (5) feet above such roof.
Vent pipes shall be run as directly as possible, and the proper fittings
must be used at all changes of direction.
(1987 Code, sec. 5-224)
All pipes or stacks passing through the roof shall be flashed
with sheet lead of not less than two and one-half (2-1/2) pounds to
the square foot and turned into the top of the pipe or into the bell
and caulked, or ten-ounce copper, properly fitted and counterflashed.
Where copper pipe is used and it terminates more than one (1) foot
above the roof, the flashing must be strapped at the top with a metal
strap and bolted or counterflashed.
(1987 Code, sec. 5-225)
Tub and shower traps may be cast-iron P traps properly installed
and vented, and may be wet vented through a lavatory.
(1987 Code, sec. 5-226)
Drinking fountains shall be constructed of impervious material
such as vitreous china, porcelain, enameled cast-iron or other noncorrosive
metals or stoneware. The jet of the fountain shall issue from a nozzle
of nonoxidizing, impervious material set in the jet to the orifice
from whence the jet issues. The nozzle and every other opening in
the water pipe or conductor leading to the nozzle shall be above the
edge of the bowl, so that such nozzle or opening shall not be flooded
in case a drain from the bowl of the fountain becomes clogged. The
end of the nozzle shall be protected by nonoxidizing guards to prevent
the mouth and nose of any person using the fountain from coming into
contact with the nozzle. The waste opening and pipe shall be of sufficient
size to carry off the water promptly and the opening shall be provided
with a strainer.
(1987 Code, sec. 5-227)
All lavatories shall be provided with traps of not less than
one and one-quarter (1-1/4) inches in diameter. Only one (1) lavatory
shall be permitted on a one and one-fourth inch arm. A battery of
lavatories up to three (3) will be allowed on one (1) trap not less
than one and one-half (1-1/2) inches in diameter. All water services
(spigots) must discharge at least three-fourths of an inch above the
rim of the fixture.
(1987 Code, sec. 5-228)
All receptacles used for water closets, urinals or otherwise,
for the disposal of human excreta, shall be constructed of materials
impervious to moisture and that will not corrode, such as vitreous
china, porcelain (all clay), or cast-iron enameled on the inside.
All water closets or urinals shall be provided with a flushing rim,
constructed so as to flush the entire interior surface of the bowl
thereof with water from an approved tank or flush valve. A compression
stop shall be placed in each water closet water supply, placed between
the tank and the floor.
(1987 Code, sec. 5-229)
No device or fixture of any type of construction shall be installed
which will provide a cross-connection between the water supply of
a building and the sanitary sewer, or any other impure condition.
(1987 Code, sec. 5-230)
Slip joints, other than required expansion joints, shall not
be used in drainage piping except in the waste pipe between a trap
seal and its fixture.
(1987 Code, sec. 5-231)
Hopper closets, with cast-iron enameled inside traps attached,
may be used in temporary construction toilets when installed in compartments
which have no direct connection with a building used for human habitation
or occupancy, and the water supply shall have a stop and waste cock
placed outside of the building in an easily accessible place.
(1987 Code, sec. 5-232)
All closet bowls, except on wood floors, shall be set on a heavy
brass closet ring or flange, weighing not less than one (1) pound,
soldered to the lead bend or stub and screwed to the floor. All screws
for water closet settings shall be of brass. Joints shall be made
gastight with an approved gasket, setting compound, white lead putty
or perfect screw joint.
(1987 Code, sec. 5-233)
The base of shower stalls installed in residences of wood construction
shall be lined with sheet lead of not less than four (4) pounds to
the square foot, and turned up on the sides to a height of not less
than six (6) inches and made leakproof. The requirement for lead pans
shall not apply to factory-made shower stalls provided such shower
stalls are leakproof and watertight after installation. All lead pans
shall have one (1) coat of asphalt paint, inside and outside, and
shall be securely clamped to the drain with a drain clamp. In shower
baths where installed in manufacturing establishments, shops, engine
or boiler rooms, in basements or on any ground floor where the floors
are concrete or tile, the above double draining fitting and lead pan
need not apply.
(1987 Code, sec. 5-234)
Waste pipes from kitchen sinks in hotels, restaurants, clubhouses,
boarding houses, public institutions, hospitals or other similar places
shall be run into an approved type grease trap, adequate in size and
constructed in such a manner as to remove all grease before it reaches
the sanitary sewer and properly vented on the sewer side. Such grease
trap shall be properly maintained in good working order and all collected
grease shall be removed at regular intervals. Plans for a concrete
grease trap may be obtained from the plumbing inspector. If the grease
trap is set more than thirty (30) inches from the sinks which it serves,
the sinks shall be locally vented and run independently through the
roof.
(1987 Code, sec. 5-235)
(a)
The
waste from any refrigerator, either ice or mechanical, or other receptacle
in which food is stored, shall discharge into an open fixture, which
fixture may be connected directly to the drainage system when properly
trapped and vented.
(b)
Appliances,
devices or apparatus not regularly classed as plumbing fixtures, but
which have drips or drainage outlets, shall be drained by indirect
waste pipes discharging into an open receptacle, or may drain into
the system between a water-supplied fixture and its trap. Any waste
pipe from such fixture exceeding thirty (30) inches in length shall
be trapped.
(1987 Code, sec. 5-236)
Sinks in bars, soda fountains and other such establishments
shall be drained to a common open fixture properly trapped and vented,
located on the same floor and as near as possible to the bar or fountain
in such a manner that it may be readily inspected and cleaned. The
top of such fixture shall be set one (1) inch or more above the floor.
(1987 Code, sec. 5-237)
Floor drains shall be of a sufficient size and design to serve
the purpose for which they are intended or used, and shall be not
less than two (2) inches in diameter. All floor drains, except as
noted below, shall enter the sanitary sewer or septic tank through
an adequate catchbasin. The catchbasin shall not be less than eighteen
(18) by eighteen (18) inches and twenty-four (24) inches deep inside
measurements, with a seal of not less than ten (10) inches, properly
vented on the sewer side and fitted with a tightfitting cast-iron
frame and cover. Floor drains shall be provided with a deep seal P
trap with a perforated metal strainer. Where the waste line from a
floor drain to the catchbasin is over fifty (50) feet long, the last
floor drain shall be locally vented and a cleanout placed on the end
of the main line. Floor drains for private residences or private residence
laundry rooms may enter the sanitary sewer or septic tank directly,
provided they are properly trapped and vented.
(1987 Code, sec. 5-238)
All commercial water from commercial laundries, and all wastewater
from poultry-dressing establishments and from fish and seafood markets,
when such water is used in connection with the dressing, killing,
cleaning, washing or handling of such poultry, fish or seafood, shall
discharge into a trough not less than four (4) inches deep and six
(6) inches wide. Such trough shall discharge into a catchbasin not
less than twenty-four (24) by twenty-four (24) by thirty (30) inches,
properly trapped and vented on the sewer side, and having a tightfitting
solid cover and frame. In fish and seafood markets, the catchbasin
shall also be vented with a two-inch vent which shall extend through
the roof independent of any other vent.
(1987 Code, sec. 5-239)
No steam exhaust or blow-off pipe from a steam boiler shall
be connected to any sanitary sewer. It shall discharge into a tank
or condenser the waste from which, after being condensed, mayenter
the sanitary sewers. The tank or condenser shall be properly trapped
and vented on the sewer side of the tank or condenser and shall be
locally vented with a two-inch vent which shall extend above the roof
independently of any other vent.
(1987 Code, sec. 5-240)
Soil and waste pipes placed in any building for future use shall
be ventilated, tested and subjected to the same rules in every respect
as if intended for immediate use, and all openings shall be plugged
and caulked or soldered.
(1987 Code, sec. 5-241)
A subhouse drain is that portion of the drainage system of a
building which cannot drain by gravity into the city sewer. Subhouse
drains shall discharge into an airtight sump or receiving tank located
to receive the sewage by gravity. From the sump or receiving tank,
the sewage shall be lifted and discharged by pumps, pneumatic ejectors
or equally efficient methods automatically operated. When the lifting
device forms a trap an additional trap on the drain may be omitted,
but all fixtures and equivalent devices shall be trapped and vented.
Receiving tanks (except in pneumatic systems) shall be provided with
a vent pipe at least three (3) inches in diameter which may be connected
to the gravity vent system. Pneumatic receiving tanks shall be provided
with relief pipes at least two (2) inches in size, and the relief
pipes shall be extended independently to the roof and terminated as
required for vent pipes in this division.
(1987 Code, sec. 5-242)
There shall be a cut-off within six (6) inches from the water
meter on the house service line to control all water in a building.
The plumber shall furnish a six-inch nipple and coupling at the meter
side of the stop. The service shall be of three-quarter inch galvanized
or copper pipe to the bathrooms and not more than three (3) fixtures
shall be supplied off a one-half inch pipe. All hot water pipes shall
be of three-quarter inch galvanized or copper pipe from the heater
to the bathroom. Water service and other underground pipe shall be
buried at least twelve (12) inches to a point just under the building
then may rise and be securely strapped to sills or floor joists at
proper intervals. Each commode shall be controlled with a stop above
the floor. Copper water pipe shall not be lighter than American Standard
type L and shall be American Standard type K when placed under a slab
floor, and shall be sleeved where it passes through the slab.
(1987 Code, sec. 5-243)
All fittings used in the water supply system shall be galvanized
malleable iron fittings, galvanized cast-iron fittings, brass fittings,
or copper or cast-brass sweat fittings. All connections and branches
on lead services must be made by means of plumbers’ wiped joints.
No pipes or fittings that have been used for other purposes shall
be used for distributing water.
(1987 Code, sec. 5-244)
All water pipes shall be well reamed, and the plumbing inspector
or his assistants may require a section of the pipe or fittings to
be removed to see that it is properly reamed. If a section of the
pipe is found to be improperly reamed, the inspector may require the
whole system of piping to be removed until it has been properly reamed.
Such work shall be done at the expense of the person installing the
pipes.
(1987 Code, sec. 5-245)
(a)
Water
service lines for residences and apartment houses shall not be less
than those prescribed in the following table; such sizes shall not
apply where flush valves are used:
|
Number of Fixtures
|
Length of Run from Main to Building
(feet)
|
Size
(inches)
|
|---|---|---|
|
1 - 7
|
|
3/4
|
|
8 - 10
|
Up to 50
|
3/4
|
|
11 - 14
|
Up to 100
|
1
|
|
15 - 24
|
Up to 50
|
1
|
|
15 - 25
|
From 50 to 100
|
1-1/4
|
(b)
For
installations not covered by the table, sizes required will be specified
by the plumbing inspector with the approval of the superintendent
of the utilities department.
(1987 Code, sec. 5-246)
(a)
When
it is impossible to drain all cold water lines to the cutoff near
the meter, then another compression stop and drain shall be placed
in some accessible place on the low point of such line. All hot water
lines in residences shall be provided with a drain cock located at
some point outside the foundation walls and installed so that all
water will drain out of the hot water lines.
(b)
The service to each apartment house having more than one (1) water meter shall have a stop and drain and a six-inch nipple as described in section 3.02.483 spaced eight (8) inches apart parallel to each other to receive meters. Metal tags shall be securely fastened to valves and drain cocks, lettered “Apt. A,” etc., or some other lettering so the valves for each tenement may be easily found.
(1987 Code, sec. 5-247)
All plumbing fixtures shall be provided with a sufficient supply
of water for flushing to keep them in a sanitary condition. Every
water closet or urinal shall be flushed by means of an approved tank
or flush valve of at least four (4) gallons flushing capacity for
water closets, and at least one (1) gallon for urinals, and shall
be adjusted to prevent the waste of water. The flush pipe for water
closet flush tanks shall not be less than one and one-fourth (1-1/4)
inches in diameter, and the water from flush tanks shall not be used
for other purposes.
(1987 Code, sec. 5-248)
(a)
To
prevent the possibility of backsiphonage, every outlet, opening, orifice
or termination of any hot or cold water piping, including every faucet,
stopcock, ball cock, valve or similar appliance through which water
is discharged, shall not be less than three-quarters of an inch above
the level at which the fixture would overflow on the floor unless
the supply pipe thereto is provided with an approved flush valve,
together with an approved air inlet or vacuum breaker, or an approved
check valve and vacuum breaker.
(b)
Lawn
sprinkler systems shall be equipped with an approved vacuum breaker
on the discharge side of each of the last valves. The vacuum breaker
shall be at least six (6) inches above the highest head and at no
time less than six (6) inches above the surrounding ground.
(1987 Code, sec. 5-249)
No hot or cold water piping or portion thereof shall be directly
connected to, nor any hose, tube or pipe connected to any hot or cold
water piping shall be inserted in, placed in or connected to, any
trap tailpiece, drain piping, waste piping, soil piping, house draining
system or sewer, or any portion thereof.
(1987 Code, sec. 5-250)
A globe valve in a cold water [line] and lever handle gas stop
shall be accessible at the water heater. An approved temperature and
pressure relief valve in the hot water line shall be within six (6)
inches of the heater with the outlet to be piped to the outside of
the building and turned down within one (1) foot of the ground or
to an open fixture. The water heater shall be vented with an approved
double walled pipe and shall not be installed in a bedroom, bathroom
or attic, or in closets opening into the same. If set in a closet
it shall be vented at the bottom of the door or wall with either holes
or a grille to give thirty (30) square inches of ventilation. A heater
or furnace vent shall not enter a stove hood or connect to any other
vent supplied by any other fuel.
(1987 Code, sec. 5-251)
In all cases and conditions not covered by this division, the
plumbing inspector, together with the duly appointed representative
of the city health department, shall determine whether a condition
is insanitary, a source of contamination or a hazard to the public
health and safety.
(1987 Code, sec. 5-252)
