B.
Water supply.
(1)
Potable water from an Erie County Department of Health approved source shall be available at all times in residential buildings. The domestic water supply system of the building shall be connected to such approved source and shall not be subject to contamination. When supplied from a public source, the potable water supply system shall not be connected to private or unsafe water supplies.
(2)
Water supply systems shall be installed and maintained so as to provide at all times a supply of water to plumbing fixtures, devices and appurtenances in sufficient volume and at pressures adequate to enable them to function satisfactorily and without undue noise under all normal conditions of use.
(3)
Water supply systems shall be installed and maintained so that water used for purposes of cooling or heating shall not be reintroduced into the domestic water supply system nor be distributed through equipment to plumbing fixtures.
(4)
Hot-water supply systems shall be provided with safety devices arranged to relieve hazardous pressures and excessive temperatures.
(5)
Water supply systems shall be protected against freezing.
C.
Sewage drainage system.
(1)
Plumbing fixtures shall be drained to a sewage drainage system, and such system shall be connected to an Erie County Department of Health approved system of sewage disposal.
(2)
Substances which will produce explosive mixtures, destroy the pipes or their joints or interfere unduly with the sewage disposal process shall not be discharged into the building drainage system unless it is provided with devices suitable for intercepting such substances.
(3)
Each fixture directly connected to the sewage drainage system shall be equipped with a water seal trap.
(4)
Adequate cleanouts shall be provided and maintained so that the pipes may be readily cleaned.
(5)
The drainage system and its attendant vent piping shall be maintained so as to provide adequate circulation of air in all pipes in order that siphonage, aspiration or pressure will not cause a loss of trap seal under ordinary conditions of use.
(6)
Drains provided for fixtures, devices, appliances or apparatus containing food, water, sterile goods or similar materials shall be equipped with air breaks adequate to prevent contamination of such contents from any possible backup of sewage through the direct or indirect drainage piping.
D.
Storm drainage.
(1)
Roofs and paved areas, including yards and courts, shall be adequately drained so as to prevent undue accumulations of water.
(2)
Leaders and gutters, if used, shall be constructed of noncombustible material, except that wood leaders and gutters may be used for buildings not more than three stories high.
E.
Plumbing facilities.
(1)
Buildings and portions thereof shall be provided with plumbing systems designed to dispose of the sewage from all fixtures and to furnish cold water to every water closet and urinal and hot water, not less than 120° F. and not more than 150° F., and cold water to every sink, lavatory, bathtub and shower required therein.
(4)
Where multiple dwellings contain sleeping accommodations arranged as a dormitory, for each multiple of 15 persons or fraction thereof so accommodated, there shall be provided, and located adjacent thereto, plumbing fixtures consisting of at least:
(5)
Urinals may be substituted in men's toilet rooms for not more than 1/3 of the required number of water closets.
(6)
Privies and outhouses shall be prohibited on all types of premises.
F.
Plumbing fixtures.
(1)
Plumbing fixtures shall be made of smooth nonabsorbent material and shall be free from concealed fouling surfaces.
(2)
Plumbing fixtures shall be so spaced as to be reasonably accessible for their intended use.
(3)
Plumbing fixtures shall be located in spaces that are accessible, lighted and ventilated.
G.
Water supply tanks.
(1)
Water supply tanks shall be installed and maintained so as to be watertight, verminproof, rodentproof, resistant to corrosion, and capable of withstanding the working pressures under normal operation.
(2)
Supports for tanks shall be of noncombustible construction.
(3)
Tanks and their supports shall not be used to support equipment or structures other than for tank use, except where specifically designed for such other use.
(4)
Means for emptying water supply tanks shall be provided and maintained in proper working condition.
(5)
Potable water supply tanks for domestic supply and standpipe or automatic sprinkler systems shall be installed and maintained to furnish water in sufficient quantity and pressure for such systems.