Plumbing fixtures, devices and appurtenances shall be supplied

with water in sufficient volume and at pressure adequate to enable them to function

satisfactorily and without undue noise under all normal conditions of use.

Plumbing shall be designed and adjusted to use the minimum

quantity of water consistent with proper perfornance and cleaning.

Devices for heating and storing water shall be so designed and

installed as to prevent dangers from explosion through overheating.

Every building having plumbing fixtures installed and intended for

human habitation, occupancy or use on premises abutting on a street, alley or

easement where there is a public sewer, shall be connected to the sewer system.

Each family dwelling unit on premises abutting on a sewer or with

a private sewage-disposal system shall have at least one water closet and one kitchen type

sink. Further, a lavatory and bathtub or shower shall be installed to meet the

basic requirements of sanitation and personal hygiene .

Plumbing fixtures shall be made of smooth non-absorbent material,

free from concealed fouling surfaces and shall be located in ventilated enclosures.

The drainage system shall be designed, constructed and maintained

to safeguard against fouling, deposit of solids, clogging and with adequate cleanouts

so arranged that the pipes may be readily cleaned.

All pipings of plumbing systems shall be of durable NAMPAP APPROVED

materials, free form defective workmanship, designed and constructed

by Registered Master Plumbers to ensure satisfactory service.

Each fixture directly connected to the drainage system shall be

equipped with a water-sealed trap.

The drainage piping system shall be designed to provide adequate

circulation of air free from siphonage, aspiration or forcing of trap seals under

ordinary use.

Vent terminals shall extend to the outer air and installed to preempt

clogging and the return of foul air to the building

Plumbing systems shall be subjected to such tests to effectively

disclose all leaks and defects in the workmanship.

No substance which will clog the pipes, produce explosive

mixture destroy the pipes or their joints or interfere unduly with the sewage-disposal

process shall be allowed to enter the building drainage system.

Proper protection shall be provided to prevent contamination of

food, water, sterile goods and similar materials by backflow of sewage. When

necessary, the fixture, device or appliance shall be connected indirectly with the

building drainage system.

No water closet shall be located in a room or compartment which

is not properly lighted and ventilated.

If water closets or other plumbing fixtures are installed in buildings

where there is no sewer within a reasonable distance, suitable provision shall be made

for disposing of the building sewage by some accepted method of sewage treatment

and disposal, such as a septic tank.

Where a plumbing drainage system may be subject tO backflow of

sewage, suitable provision shall be made to prevent its overflow in the building.

Plumbing systems shall be maintained in serviceable condition by

Registered Master Plumbers.

All plumbing fixtures shall be installed properly spaced, to be

accessible for their intended use.

Plumbing shall be installed by Registered Master Plumbers with

due regard to the preservation of the strength of structural members and the

prevention of damage to walls and other surfaces through fixture usage.

Sewage or other waste from a plumbing system which may be

deleterious to surface or sub-surface waters shall not be discharged into the ground or

into any waterway, unless first rendered innocuous through subjection to some

acceptable form of treatment.