22 Principles of the Revised National Plumbing Code of the Philippines

Vocabulary flashcards covering the 22 principles of the Revised National Plumbing Code of the Philippines.

Principle 1 - Clean Water

All premises intended for human habitation, occupancy or use shall be provided with a supply of pure and wholesome water, neither connected with unsafe water supplies nor subject to hazards of backflow or back-siphonage.

Principle 2 - Volume and Pressure

Plumbing fixtures, devices and appurtenances shall be supplied with water in sufficient volume and at a pressure adequate to enable them to function satisfactorily and without undue noise under all normal conditions of use.

Principle 3 - Efficiency

Plumbing shall be designed and adjusted to use the minimum quantity of water consistent with proper performance & cleaning.

Principle 4 - Explosion

Devices for heating and storing water shall be so designed and installed as to prevent dangers from explosion through overheating.

Principle 5 - Sewer

Every building having plumbing fixtures installed and intended for human habitation, occupancy or use on premises abutting (adjacent to) a street, alley or easement where there is a public sewer, shall be connected to the sewer system.

Principle 6 - Plumbing Unit

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 sink; a lavatory and bathtub or shower shall also be installed for sanitation and personal hygiene.

Principle 7 - Ventilation

Plumbing fixtures shall be made of smooth non-absorbent material, free from concealed fouling surfaces and shall be located in ventilated enclosures.

Principle 8 - Cleanouts

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.

Principle 9 - NAMPAP

All pipings of plumbing systems shall be of durable NAMPAP APPROVED materials, free from defective workmanship, designed and constructed by Registered Master Plumbers to ensure satisfactory service.

Principle 10 - Trap

Each fixture directly connected to the drainage system shall be equipped with a water-sealed trap.

Principle 11 - Air Circulation

The drainage piping system shall be designed to provide adequate circulation of air free from siphonage, aspiration (inhalation/suction) or forcing of trap seals under ordinary use.

Principle 12 - Vent and Terminals

Vent terminals shall extend to the outer air and installed to preempt clogging and the return of foul air to the building.

Principle 13 - Test

Plumbing systems shall be subjected to such tests to effectively disclose all leaks and defects in the workmanship.

Principle 14 - Sewage Harm

No substance which will clog the pipes, produce explosive mixtures, destroy the pipes or their joints or interfere shall be introduced into the system.

Principle 15 - Contamination

Proper protection shall be provided to prevent contamination of food, water, sterile goods and similar materials by backflow of sewage, including indirect connections when necessary.

Principle 16 - Water Closet Light

No water closet shall be located in a room or compartment which is not properly lighted and ventilated.

Principle 17 - Septic Tank

When there is no sewer within a reasonable distance, suitable provision shall be made for disposing of the building sewage by an accepted method of treatment and disposal, such as a septic tank.

Principle 18 - Sewage Backflow

Where a plumbing drainage system may be subject to backflow of sewage, suitable provision shall be made to prevent its overflow in the building.

Principle 19 - RMP

Plumbing systems shall be maintained in serviceable condition by Registered Master Plumbers.

Principle 20 - Accessible

All plumbing fixtures shall be installed properly spaced, to be accessible for their intended use.

Principle 21 - Structural Stability

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.

Principle 22 - Sewage Treatment

Sewage or waste from a plumbing system which may be deleterious (harmful/toxic) to surface or sub-surface waters shall not be discharged into the ground or waterway unless first rendered innocuous through treatment.