National Plumbing Code of the Philippines

Master Plumber Reviewer

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 NO. 1

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.

PRINCIPLE NO. 2

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

PRINCIPLE NO. 3

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

PRINCIPLE NO. 4