The sewer system for all pools/spas shall comply with the following:

1. (1) Capacity. The sewer system shall have sufficient capacity to serve the facility, including the:

   1. (A) Bathhouse;
   2. (B) Locker rooms;
   3. (C) Toilets; and
   4. (D) Related accommodations;

2. (2) Connection.

   1. (A) There shall be no direct physical connection between the sewer system and any drain from the pool/spa or circulation system.
   2. (B) Any pool/spa deck drain, backwash, or overflow from the circulation system, when discharged to the sewer system, storm drain, or other approve natural drainage course, shall be discharged through a suitable air gap so as to preclude the possibility of backflow of sewage or wastewater into the pool/spa or piping system; and

3. (3) Individual sewage disposal systems.

   1. (A) The sanitary sewer servicing the pool and auxiliary facilities shall discharge to a public sewer system wherever possible and in accordance with applicable requirements.
   2. (B) Where no such sewer is available, the connection shall be made to a suitable wastewater treatment system which has been designed and constructed and is operated and maintained in accordance with all the current Department of Health Rules Pertaining To Onsite Wastewater Systems, 14 CAR pt. 21.
   3. (C) An on-site sewage disposal system permit shall be approved before pool construction can begin.
   4. (D) Filter backwash and pool drainage shall not be discharged into an onsite sewage disposal system.