This comprehensive plumbing system layout for a one-storey duplex apartment features detailed sanitary, water supply, and storm drainage systems. This plan incorporates a three-chamber septic tank system with digestion and leaching chambers for on-site waste treatment. Sanitary lines utilize 100mm PVC pipes for main waste lines and 50mm PVC for branch connections, with proper venting systems. Water supply lines employ 25mm PPR main distribution pipes with 13mm branch lines to fixtures. Each unit contains two bathrooms and one kitchen with standard fixtures including western-type water closets, counter-mounted lavatories, and a kitchen sink with 5GPM grease trap. The storm drainage system features strategically placed 150mm diameter catch basins connected to the municipal drainage system. All piping meets Philippine Plumbing Code standards with specified minimum slopes of 1% for sanitary lines and 0.5% for storm drainage. Detail sheets include typical fixture connections, clean-out installations, and water meter assembly specifications.
Single-Storey Duplex Plumbing Plan with PVC Drainage System
