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248 MR: BOARD D F STATE EXAMINERS <br /> F PLUMBERS AND GAS FITTERS <br /> ' r <br /> a , <br /> .o : Basic Principles w <br /> Founding of Principles. This Code is founded upon certain principles of <br /> environmental sanitation and safety through properly designed, acceptably <br /> } installed, and adequately maintained plumbing systems. <br /> Some of the details of plumbing construction may vary but the basic <br /> sanitary and safety principles desirable and necessary to protect the health of <br /> people are the same everywhere. As interpretations may be required, and as <br /> unforeseen situations arise which are not specifically covered in this Code, the <br /> final interpretation shall be made by the Board of State Examiners of Plumbers <br /> and Gas Fitters. <br /> The following principles shag comply with all Articles of the State Sanitary <br /> Code and Titles of the Environmental Code. <br /> 1) Principle No. 1 -- All Occupied Premises Must Have,Potable water. All <br /> Premises intended for human habitation, occupancy, or usemust be provided <br /> with a supply of potable water. Such a water supply shall not be connected with <br /> unsafe or questionable water sources, nor shall it be subject to the hazards of <br /> backflow, backpressure or back-siphonage. <br /> Principle No. 2 --- Adequate water Required. Plumbing fixtures, devices, <br /> and appurtenances must be supplied with water in sufficient volume and at <br /> pressures adequate to enable there to function properly and without undue noise <br /> under normal conditions of use. <br /> ( ) Principle No. 3 -- Hot Water Re aired. Hot water must be supplied to all <br /> plumbing fixtures which normally meed or require hot water for their proper use <br /> and function. <br /> (4) Principle No. 4 -- Nater Conservation. Plumbing must be designed and <br /> adjusted to use the minimum quantity of water consistent with proper <br /> performance and cleaning. -• <br /> Principle No. 15 -- Dangers of Explosion or Overheating. Devices and <br /> appliances for heating and storing water must be so designed and installed as to <br /> guard against dangers from explosion or overheating. <br /> Principle No. 6 -- Required Plumbing Fixtures. Each family dwelling must <br /> have at least one water closet, one lavatory, one kitchen-type sink, one bathtub <br /> or shower and laundry tray or connections for a washing machine, to meet the <br /> basic requirements of sanitation and personal hygiene. In multiple dwellings, <br /> dousing families, one laundry tray or washing machine for every ten <br /> apartments, or fraction thereof, shall be acceptable as meeting laundry <br /> facilites in this Principle.) One laundry tray or washing machine for every <br /> twenty apartments or fraction thereof, shall be acceptable in housing for the <br /> elderly. <br /> All other structures for habitation must be equipped with sufficient sanitary <br /> facilites. Plumbing fixtures must be. made of durable, smooth, nonabsorbent <br /> and corrosion resistant material and must be free from concealed fouling <br /> surfaces. <br /> Principle No. 7 -- Drainage System of Adequate Size. The drainage system <br /> must be designed, constructed, and maintained to guard against fouling, deposit <br /> of solids, and clogging, and with adequate cleanouts so arranged that the pipes <br /> may be readily cleaned. <br /> (8) Principle No. 8 -- Durable Materials and Good Worlcrnar 1p. The piping of <br /> the plumbing system must be of durable material, free from defective <br /> workmanship and so designed and constructed as to give satisfactory service for <br /> its reasonable expected life. <br /> Principle No. 9-- Liquid Sealed Wraps Requdred. Each fixture directly <br /> connected to the drainage system must be equaipped with a liquid-seal trap. <br /> to Principle No. 10 -- Trap Seals Shall Be Protected. The drainage system <br /> must be designed to provide an adequate circulation of air in all pipes with no <br /> 9130186 248 CMI - 6 <br />