(c) The water service shall be:

1. (1) Brought into the building to comply with the requirements of the Arkansas Plumbing Code, 17 CAR pt. 65; and
2. (2) Free of cross connections.

(d) Hot water heaters.

1. (1)

   1. (A) Hot water heating and storage equipment shall have sufficient capacity to supply:

(i) Four (4) gallons of water at one hundred ten degrees Fahrenheit (110˚F) (forty-three degrees Celsius (43˚C)), per hour per bed for institution fixtures;

1. (ii) One (1) gallon at one hundred sixty degrees Fahrenheit (160˚F) (seventy-one degrees Celsius (71˚C)), per hour per bed for the laundry; and

   1. (iii) One (1) gallon at one hundred eighty degrees Fahrenheit (180˚F) (eighty-two degrees Celsius (82˚C)) per hour per bed for the kitchen.
   2. (B) The water temperature in patient areas shall not exceed one hundred ten degrees Fahrenheit (110˚F) (forty-nine degrees Celsius (49˚C)).
2. (2) The hot water storage tank, or tanks, shall have a capacity equal to forty percent (40%) of heater capacity.
3. (3) Tanks and heaters shall be fitted with pressure temperature relief valves.

4. (4)

   1. (A) Temperatures of hot water at plumbing fixtures used by residents shall be automatically regulated by control valves.
   2. (B) Water temperature in patient areas shall be checked weekly.
5. (5) All gas, oil, or coal heaters shall be vented to the outside.

(e) Plumbing and other piping systems.

1. (1)

   1. (A) All plumbing systems shall be designed and installed in accordance with the requirements of Arkansas Plumbing Code, 17 CAR pt. 65.
   2. (B) From the cold water service and hot water tanks, cold water and hot water mains and branches shall be run to supply all plumbing fixtures and equipment which require hot and cold water or both for their operation.
   3. (C) Pipes shall be sized to supply hot and cold water to all fixtures with a minimum pressure of fifteen pounds (15 lbs.) at the top floor fixtures during maximum demand periods.
2. (2) Water closets shall be the elongated type, and water closet seats shall be of the open-front type.
3. (3) Gooseneck spouts shall be used for patients' lavatories and sinks, which may be used for filling pitchers.
4. (4) Knee, elbow, wrist, or foot action faucets shall be used in treatment rooms.
5. (5) An electrically operated water fountain shall be so located as to be accessible to patients.

6. (6)

   1. (A) Backflow preventers (vacuum breakers) shall be installed with any water supply fixture where the outlet's end may at times be submerged.
   2. (B) Examples of such fixtures are hoses, sprays, direct flushing valves, aspirators and under-rim water supply connections to a plumbing fixture or receptacle in which the surface of the water in the fixture or receptacle is exposed at all times to atmospheric pressure.