HISTORY OF PLUMBING CODE 17th Century - Walled City of Intramuros Model Community - Illustrados recognized Plumbers Governor General Harrison proper disposal of waste 1902 Plumbing code was duly recognize - John F. Hass 1st Master Plumber 1935 NAMPAP was formed National Master Plumber association of the Philippines - City Ordinance 2411 Plumbing code for city of Manila June 18,1955 - RA 1378 Plumbing Law of the Philippines signed by Pres. Ramon Magsaysay January 28,1959 - approved by Malacanang NAWASA National Waterworks and Sewarage Authority - Asbestos Cement pipe 1st approved Plumbing Materials 22 BASIC PRINCIPLES - Supply of pure and wholesome water Sufficient volume and adequate pressure of water supply Minimum quantity of water Well designed of heating and storing of water Shall be connected to the sewer system One water closet and one kitchen sink must always be provided Plumbing fixtures must be made of smooth and non abosrbent material Adequate cleanouts - NAMPAP approved materials Water sealed trap circulation of air must be adequate Vent terminals shall extended to the outer air plumbing system tests Destructive object shall not be allowed to enter the building drainage system Appliances shall be indirectly connected to BDS (building drainage system) Water Closet shall be properly lighted and ventilated Septic tank Back flow prevention RMP - Registered Master plumbers (Services) Plumbing fixture RMP - Registered Master plumbers (Structural and Design) Sewerage Treatment