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 (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 1-1/4" in diameter, and the water from
flush tanks shall not be used for other purposes. The fixture supply
pipe to all closets and lavatories shall be provided with separate
stop cocks with renewal discs. Slip joints will not be permitted on
any supply line up to valve.
(1965 Code, sec. 15-108)
A group of urinals in the same room as in schools and factories
may be supplied from one automatic flush tank of a capacity equal
to one gallon of water to each urinal. Automatic flush must be simultaneous
and of such force as to cleanse each individual fixture. Intermittent
or automatic flushing devices shall be flushed at regular intervals
not to exceed ten minutes during the hours that such fixtures are
used. If wall urinals are used, one floor drain shall be installed
under the fixtures for each battery of one to three urinals. Walls
and floor of room in which urinal or urinals are located shall be
of nonabsorbent materials.
(1965 Code, sec. 15-109)
Water connection for fire protection shall be made independent
of all other service pipes.
(1965 Code, sec. 15-111)
The water piping in apartments and multiple dwellings in buildings
not more than two stories in height shall be installed in accordance
with one of the following methods:
(1) When a separate water meter is to be installed for each apartment, the installation shall be made in the same manner as described for residence water service. A separate valve box may be installed for each service line or the valves from several lines may be installed in one box, provided that the box is sufficiently large to accommodate all drain cocks and valves contained therein in such a manner that each valve may be removed or repaired without disturbing the other valves in the box. The temperature and pressure relief valve drain lines from not more than four water heaters may discharge to a common relief drain line. Such drain line shall be graded to drain, shall discharge outside the building as specified in section
3.05.308 and shall not be less than 3/4" in size when serving four (4) water heaters.
(2) When
not more than three apartments are located in one building the water,
piping shall be installed as described in (1) above except that one
water meter may be used.
(3) When one water meter is provided for a building serving four to twelve apartments, the water piping may be installed as described in (1) and (2) above or such piping shall be installed in the following manner: A main shut off valve and drain shall be installed on the main water supply to the building and located in a box as described for residence water service. Such valve and drain may be installed in a basement with a floor drain. All water risers shall be located in inside partition walls. Each fixture shall be provided with an individual compression stop cock accessibly located on hot and cold water supply only. All hot and cold water supply lines shall be covered with 3/8" thick insulation with materials as described in section
3.05.134. When a water heater is installed in each apartment the temperature and pressure relief valve drain line from not more than four (4) water heaters may discharge to a common relief drain line as specified in (1) above.
(4) When
more than one apartments’ stop, and drain valves are placed
in a cutoff box, each valve shall be labeled with a permanent metal
tag fixed to the valve identifying the apartment controlled.
(5) Plans
for the water supply systems for apartment buildings exceeding two
stories in height shall be submitted to the chief plumbing inspector
for approval.
(1965 Code, sec. 15-113)
Connections to and from hot water heaters shall not be smaller
than 3/4" pipe size. Hot water pipe shall not be less than 3/4" size
from heater to tee branch or the first fixture.
(1965 Code, sec. 15-114)
The fountain shall be constructed of impervious material, such
as vitreous china, porcelain, enameled cast iron, other noncorrosive
metals, or stoneware. The jet of the fountain shall issue from a nozzle
of nonoxidizing, impervious material set at an angle from the vertical
so as to prevent the return of water in the jet to the orifice or
orifices 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 flood level of the bowl. The end of the nozzle shall be protected
by nonoxidizing guards. Guards shall be so designed that the possibility
of transmission of infection by touching the guards is reduced to
a minimum. The inclined jet of water issuing from the nozzle shall
not touch the guard. The bowl of the fountain shall be so designed
and proportioned as to be free from corners and shall be so proportioned
as to prevent unnecessary splashing at a point where the jet falls
into the bowl. The drain from the fountain shall have a direct physical
connection with a waste pipe, and the drain shall be properly trapped
and vented. The waste opening and drain shall be of sufficient size
to carry off the water promptly. The opening shall be provided with
a strainer. The water supply pipe shall be provided with an adjustable
valve fitted with a loose key or an automatic valve permitting the
regulation of the rate of flow of water to the fountain.
(1965 Code, sec. 15-115)
Every lawn sprinkler system shall be provided with a horizontal
swing check valve with a 45-degree seat installed between the water
meter and master shutoff valve for the system. Each such system shall
be provided with a means of draining and all such piping shall not
be less than 12" underground. A backflow preventer shall be installed
when required by the plumbing inspector.
(1965 Code, sec. 15-116)
Water wells, pumps, storage basins and appurtenances shall be
constructed and maintained in such a manner as to protect the water
from contamination and shall be constructed and maintained in accord
with the standards promulgated by the state board of health for water
supply systems. The well water supply system shall be inspected from
time to time by the city sanitary engineer or his authorized representative
who shall require that the said standards be complied with.
(1965 Code, sec. 15-117)