(a) General.

1. (1) Every pool/spa shall be equipped with a disinfectant feeder or feeders as required to maintain the microbiological, chemical, and physical characteristics of the pool/spa water within the required limits as listed in Appendix B.
2. (2) The disinfectant shall provide a residual in the pool/spa water so that it can be monitored.

(b) Types of feeders.

1. (1) Disinfectant feeders for use on public pools and spas may be the hypochlorinator type that feeds as a liquid by positive displacement or by a feeder that uses controlled erosion or dissolving of a chemical by the flow through process.
2. (2) Feeders shall maintain a dosage proportional to the flow.
3. (3) Because of serious safety considerations the use of gas chlorine is not recommended and may not be approved.
4. (4) When used, the operation must be in compliance with all state and federal safety requirements.

(f) Feed rate.

1. (1) Disinfection feeders shall have the capacity to feed five parts per million (5 ppm) to the twenty-four-hour recirculation flow of the filtration system.
2. (2) All other disinfectants shall feed at rates as determined by the department.

(g) Minimum standards for gas chlorine feeders on existing pools.

1. (1) Design. Feeders shall be of such design and construction as will:

   1. (A) Withstand:

(i) Wear;

1. (ii) Corrosion or attack by chlorine gas;

   1. (iii) Chlorine vapors; or

      1. (iv) Chlorine solutions; and
   2. (B) Not be adversely affected by repeated regular adjustments or other conditions anticipated in the normal use of the device.
2. (2) Easily cleanable. Feeders shall be capable of being easily disassembled for cleaning and maintenance and being easily reassembled.
3. (3) Nonclog design. Feeders shall be of such design and construction as to preclude stoppage from materials which may be contained in the compressed gas.
4. (4) Fail safe. Feeders shall incorporate failure-proof features so that the chlorine gas cannot feed directly into the swimming pool, the pool piping system, water supply system, or the swimming pool enclosure under any type of failure or interruption of operation of the equipment.
5. (5) Solution feed type. Feeders shall be a solution feed type, capable of delivering a chlorine solution at its maximum rate without releasing chlorine gas into the atmosphere.
6. (6) Accidental failure. Feeders shall be of such design so that during accidental failure or interruptions of water supply to the chlorinator, any leaking gas will be safely conducted to the outdoors, not onto the pool deck or any populated area.

7. (7) Chlorine compartment.

   1. (A)

      1. (i) Where gaseous chlorine equipment is provided, the mechanical proportioning device and cylinders of chlorine shall be housed in a reasonably gas tight, corrosion-resistant, and mechanically vented enclosure with a shatter-proof gas tight inspection window.
      2. (ii) Venting shall:

(b) (b) Have a motor-driven exhaust fan capable of producing at least one (1) air exchange per minute.

1. (iii) Properly designed automatic louvers are required near the top of the enclosure for admitting fresh air.

   1. (iv) Electrical switches for the control of artificial lighting and ventilation shall be on the outside of the enclosure adjacent to the door.

   2. (B)

      1. (i) The floor area of the enclosure shall be of adequate size to house the chlorinator, fan, scales, and one (1) extra chlorine cylinder.
      2. (ii) Cylinders must be anchored to provide proper storage.
      3. (iii) Ammonia stored outside the chlorine room must be available to detect any possible chlorine leaks.
2. (8) SCBA required. A self-contained breathing apparatus (SCBA) shall be provided and shall be readily accessible in a secured location outside the chlorine room.

(h) Hypochlorinators and chemical feeders.

1. (1) Positive feed required. Feed shall be positive and constant under all conditions of pressure in the circulating system.

2. (2) Back flow prevention. Positive features to prevent back-flow from the circulation system to the solution container shall be provided.

   1. (i) Flow through or controlled erosion feeders.
3. (1) Flow through or controlled erosion feeders shall be used in conjunction with a chemical feeder to maintain pH when used for feeding a hypochlorite nonstabilized compound.
4. (2) The feeder shall have an adjustable rate of flow through the feeder.
5. (3) The feeder shall have a positive flow indicator.
6. (4) The feeder shall be so constructed and installed so that no chemical shall be fed when the circulating system has been shut down.

(j) Chemical training.

1. (1) Any facility utilizing chlorine gas shall be required to have operators complete a certified training course which should include topics such as:

   1. (A) Handling;
   2. (B) Storage; and
   3. (C) Hazard response and planning.
2. (2) Similar training is also recommended for facilities utilizing sodium hypochlorite.