Revised Plumbing Code of 1999 Quiz

General Requirements for Plumbing Systems

• Water closets must be located in rooms with proper lighting and ventilation.
• In areas without a sewer system, suitable provision must be made for sewage disposal using an accepted method, such as a septic tank.

Preventing Backflow and Overflow

• Measures must be taken to prevent backflow of sewage in plumbing systems.
• Suitable provision must be made to prevent overflow of sewage in buildings.

Maintenance and Installation

• Plumbing systems must be maintained in serviceable condition by Registered Master Plumbers.
• Plumbing fixtures must be installed properly spaced and accessible for their intended use.
• Plumbing systems must be installed to preserve the strength of structural members and prevent damage to walls and surfaces.

Environmental Protection

• Sewage or waste from plumbing systems must not be discharged into the ground or waterways unless treated to be harmless.
• The drainage system must be designed and maintained to prevent fouling, deposit of solids, clogging, and ensure adequate cleanouts.

Components of Plumbing Systems

• Water distribution system
• Fire protection system
• Plumbing fixtures
• Sanitary drainage system
• Storm drainage system
• Fuel gas piping system

Design and Construction of Drainage Systems

• Drainage pipes must be made of durable, NAMPAP-approved materials, free from defective workmanship.
• Each fixture directly connected to the drainage system must be equipped with a water-sealed trap.
• The drainage system must be designed to provide adequate circulation of air, free from siphonage, aspiration, or forcing of trap seals.
• Vent terminals must extend to the outer air and be installed to prevent clogging and return of foul air to the building.

Testing and Protection

• Plumbing systems must be subjected to tests to disclose all leaks and defects in workmanship.
• Substances that can clog pipes, produce explosive mixtures, or interfere with sewage disposal must not be allowed to enter the building drainage system.
• Proper protection must be provided to prevent contamination of food, water, sterile goods, and similar materials by backflow of sewage.

Revised Plumbing Code of 1999

• Adopted by the Professional Regulation Commission (PRC) in 1999
• Approved by President Joseph Estrada on December 21, 1999

Basic Principles of the Plumbing Code

• All premises intended for human use or habitation must be provided with a supply of pure and wholesome water.
• Plumbing fixtures, devices, and appurtenances must be supplied with water in sufficient volume and pressure.
• Plumbing systems must be designed to use the minimum quantity of water consistent with proper performance and cleaning.
• Devices for heating and storing water must be designed and installed to prevent dangers from explosion through overheating.
• Every building abutting on a street, alley, or easement with a public sewer must connect its plumbing fixtures to the sewer system.
• Each family dwelling unit must have at least one water closet, one kitchen type sink, a lavatory, and a bathtub or shower to meet basic sanitation and personal hygiene requirements.
• Plumbing fixtures must be made of smooth, non-absorbent material, free from concealed fouling surfaces, and located in ventilated enclosures.