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.

shall not Act in an UNPROFESSIONAL manner and demand any remuneration other than his/her original charges except for additional services not covered in the basic contract

shall not Supplant another Registered Master Plumber after definite steps have already been taken toward his/her BEING COMMISSIONED to perform the contract;

shall not UNDERBID another Registered Master Plumber by reducing

his/her professional fees after being informed of the fees

charged by the other Registered Master Plumber;

shall not Take the advantage of a SALARIED GOVERNMENT POSITION to compete unfairly with a practicing Registered Master Plumber;

shall not Allow the USE OF HIS/HER LICENSE as Registered Master Plumber

for a fee to an unlicensed Master Plumber in plumbing works

without his/her personal supervision.

shall not INJURE FALSELY or maliciously, directly or indirectly, the reputation of another Registered Master Plumber by reviewing his/her work for the same client unless the professional services of the former have been officially terminated and all professional fees have been fully paid by the client;

shall not ADVERTISE in self-laudatory language, act in any manner and engage in any practice which tend to bring dishonor to the dignity of the Registered Master Plumber, the National Master Plumbers Association of the Philippines (NAMPAP) and the plumbing profession.

The current chairman of BOMP

The present designated chairman of unification and integration of Master Plumbing profession

Adoption and Promulgation of The Revised National Plumbing Code of the Philippines

The first Chief of the Division of Plumbing Construction and Inspection

the flow of water or other liquids, mixtures or substances into the distributing pipes of a potable supply of water from any source other than from its intended source.

the flowing back of used, contaminated or polluted water from a plumbing fixture or vessel into a water supply pipe due to negative pressure in such a pipe.

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.

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 performance 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 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 all disclose 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 tb 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.