• Polypropylene (PP) • Styrene rubber plastic(SR) • Polyethylene (PE) • Polybutylene (PB) In 1972, approximately 4500 states, country and city codes permitted to use the plastic pipes for all the portion of the plumbing system. “Model Code” promulgated by the Association of Plumbing Officials and the Plumbing Contractors 12 Simplified Plumbing Design (NPC Philippines)
The Model Codes that Approved the use of Plastic Pipe for Plumbing System are: • The National Standard Plumbing Code • Building Officials and the Code Administrations International • National Associations of Plumbing, Heating, Cooling, Contractors • Southern Standard Plumbing Code • Southern Building Code Congress • Uniform Standard Plumbing Code • International Association of Plumbing and Mechanical Officials 13 Simplified Plumbing Design (NPC Philippines)
1.6 Plumbing Fixtures Simplified Plumbing Design (NPC Philippines) A plumbing fixture is an exchangeable device which can be connected to a plumbing system to deliver and drain water 14 The Sanitary Fixtures: 1. Water Closet 2. Urinal 3. Lavatories 4. Sinks, Pantry Sinks 5. Service Sinks 6. Bath tubs 7. Shower 8. Drinking Fountains 9. Bidets
Simplified Plumbing Design (NPC Philippines) 15
2.1 The Sewage and its Disposal 2.2 Types of Sewage Disposal (Cesspool, Privy, Septic Tank & Public Sewer) 2.3 Construction and Sizing of Septic Tank 2.4 Disposal Fields 2.0 Sewage Disposal System 16 Simplified Plumbing Design (NPC Philippines)
2.1 The Sewage and its Disposal The collection and safe disposal of human wastes are among the most critical problems of environmental health. It is the most cause of diseases such as dysentery, typhoid, diarrhea and other intestinal disorders where there is no proper and scientific Sewage Disposal System. It is therefore important not only to know the different types of sewerage disposal system, but also to understand the scientific value of the system. 2.2 Type of Sewage Disposal System • Cesspool • Privy • Septic tank • Public sewer line 17 Simplified Plumbing Design (NPC Philippines)
Cesspool It is an underground holding tank (sealed at the bottom) or a soak pit (not sealed at the bottom).It can be used for the temporary collection and storage of feces, excreta or faecal sludge as part of an on-site sanitation system. 18 Simplified Plumbing Design (NPC Philippines)
Privy It is a concrete sealed vault with wooden shelter constructed for the collection of raw sewage. Same as cesspool, it is objectionable because of the danger of contaminating the source of water supply. (It is often use in the Philippines, popular in 80’s & 90’s) 19 Simplified Plumbing Design (NPC Philippines)
Septic Tank It is a watertight box, usually made of concrete or fiberglass, with an inlet and outlet pipe. Wastewater flows from the home to the septic tank through the sewer pipe. The septic tank treats the wastewater naturally by holding it in the tank long enough for solids and liquids to separate.
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- Fall '19