1. A. Water Service. All hospitals should have dual services installed in a manner to provide an uninterrupted supply of water in case of a water main break, etc.
2. B. Hot Water Distribution System. Hot water circulating mains and risers should be run from the hot water storage tank to a point directly below the highest fixture at the end of each branch main. Where the building is higher than three stories, each riser shall be circulated. Each main, branch main, riser and branch to a group of fixtures of the water system shall be valved.

3. C. Vacuum Breaker Installations. The following shall be considered concerning the installation and use of vacuum breakers.

   1. 1. For ordinary hose connections, the maximum height at which any hose is to be used shall be treated as its flood level.
   2. 2. Where low volume flows might cause leaking or spitting at the vacuum breaker parts, back pressure may be developed by installing an acceptable minimum orifice valve on the discharge side of the vacuum breaker. This shall be in addition to the regular control valve. This type of installation shall be subject to review and acceptance by the plumbing official before installation.
4. D. Prohibited Water Closet and Clinical Sink Supply. Jet or water supplied orifices, except those supplied by the flush connections, shall not be located in or connected with a water closet bowl or clinical sink. This Subsection shall not prohibit an acceptable bidet installation.
5. E. Special Equipment, Water Supply Protection. Table 1307.E of this code sets forth the requirements which shall be followed in protecting the water supply for hospital fixtures against backflow or backsiphonage.

6. F. Clinical, Hydrotherapeutic and Radiological Equipment. All clinical, hydrotherapeutic, radiological, or any equipment, whether mentioned or not, which is water supplied or discharges to the waste system, shall meet the requirements of this Section and other Sections of this Part covering cross connectors, air gaps, vacuum breakers, and check valves. Special equipment and devices found under these classes include those listed in Table 1307.F of this code.

   Table 1307.E Fixtures and Their Water Supply Protection
   Fixtures	Type of protection1	Remarks
   Aspirators:
   Laboratory	Vacuum breaker
   Portable	Vacuum breaker
   Vacuum system	Vacuum breaker
   Bedpan:
   Washers	Vacuum breaker
   Washer hose	Vacuum breaker	Locate 5 ft above floor.
   Boiling type sterilizer	Air gap	Not less than twice the effective opening of the water supply.
   Exhaust condenser	Vacuum breaker
   Flush floor drain	Vacuum breaker	Locate 6 ft above floor.
   Hose connection	Vacuum breaker
   Pressure instrument:
   Washer-sterilizer	Vacuum breaker
   Pressure sterilizer	Vacuum breaker
   Vacuum systems:
   Cleaning	Air gap or vacuum breaker
   Fluid suction	Air gap or vacuum breaker

   1. Where atmospheric vacuum breakers are used, they shall be installed after the last control valve.

7. G. Condensate Drain Trap Seal. A water supply shall be provided for cleaning, flushing, and resealing the condensate trap. The source of the water supply shall be a refrigerator condenser discharge, a drinking fountain waste, or other acceptable method of flushing and resealing the trap. The water supply shall be not less than 1/2-inch diameter pipe and shall discharge through an air gap not less than twice the diameter of the supply pipe.

8. H. Valve Leakage Diverter. Each water sterilizer which may be filled with water through directly connected piping shall be equipped with an acceptable leakage diverter and/or bleed-line on the water supply control valve to indicate and conduct any leakage of unsterile water away from the sterile zone.

   Table 1307.F Classes of Clinical, Hydrotherapeutic and Radiological Equipment
   Clinical	Hydrotherapeutic	Radiological	Other
   Dental cuspidors	Control units	Diagnostic x-ray	Violet ray
   Surgical cuspidors	Arm bath	Therapy x-ray	Photographic
   Dental (flush rim)	Leg bath	X-ray transformers	developing
   lavatories	Tub bath	X-ray oil tank	Film
   Sitz bath	Immersion bath	Diffraction	developing
   Emergency bath	Shower bath	X-ray developing	Microscopic
   Receiving bath	Needle bath
   Prenatal bath	Tank
   Infant bath	Pool
   Prophylaxis	Hose
   Shampoo	Syringe douche
   Massage

NOTE:

Authority Note

AUTHORITY NOTE: Promulgated in accordance with R.S. 40:4(A)(7) and R.S. 40:5(2)(3)(7)(9)(16)(17)(20).

Historical Note

HISTORICAL NOTE: Promulgated by the Department of Health and Hospitals, Office of Public Health, LR 38:2885 (November 2012).