Basic Principles Of Plumbing System
1. All the Premises made for human use or habitation shall be provided with the supply of pure and water, neither connected to unsafe water supply nor subject to backflow or back- siphonage.
2. Plumbing fixtures, devices and appurtenances shall be supplied with water in sufficient volume and pressure adequate to function satisfactorily and without undue noise.
3. Plumbing system shall be designed and adjusted to use the minimum quantity of water consistent with proper performance and cleaning.
4. Devices which are used for heating and storing water shall be designed and installed in such a manner so as to prevent dangers from explosion through overheating.
5. Every and every building located on a street, alley or easement with a public sewer shall have its plumbing fixtures to the sewer system.
6. Each family dwelling unit shall have minimum of one water closet, kitchen type sink, a bathtub or shower to fulfill the basic requirements of sanitation and personal hygiene.
7. Plumbing fixtures should be made of smooth non-absorbent material and they should be free from concealed fouling surfaces and they must be located in ventilated enclosures.
8. The drainage system shall be designed, constructed and maintained to prevent the fouling, deposit of solids, clogging and with adequate cleanouts so arranged that the pipes may be readily leaned.
9. All piping shall be made of durable NAMPAP approved materials. They should be free from defective workmanship and should be designed and constructed by skilled Plumbers to ensure satisfactory service.
10. Every plumbing fixture connected directly to the drainage system shall be equipped with a water-sealed trap.
11. The piping system of drainage pipes shall be designed to provide adequate circulation of free air from siphonage aspiration.
12. Vent terminals shall extend to the outer air and installed to prevent clogging and the return of foul air to the building.
13. Plumping systems shall be subjected to such tests to effectively disclose all leaks and defects in the workmanship.
14. The materials which will clog or choke the pipes and produce explosive mixtures or destroy the pipes or their joints or interfere unduly with the sewage-disposal process shall not be allowed to enter the building drainage system.
15. Proper protection shall be used to prevent spoilage 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.
Also read : Important stages in construction project.
16. Water closet which are not properly ventilated and lighted should not be used in any compartment or room.
17. Septic tank should be constructed if there is no provision for disposal of sewage in a certain area or building.
18. Where a plumbing system and drainage system may be subject to backflow of sewage, suitable provision shall be made to prevent its overflow in the building.
19. Plumbing system and drainage system shall be maintained in serviceable condition by skilled Plumbers.
20. All plumbing fixtures shall be installed properly spaced, to be accessible for their intended use.
21. Plumbing system shall be installed 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.
22. Sewage or other waste from plumbing systems, which may be dangerous to surface or sub-surface waters shall not be discharged into the ground or into any waterway, unless they are properly treated.