ARM 37.115.1001. CIRCULATION SYSTEMS

(1) A circulation system consists of pumps, piping, return inlets, suction outlets, filters, disinfection equipment, and other equipment that may be attached to the circulation system shall be provided for complete circulation and treatment of water for all public swimming pools, including spas and other water features. (2) In this rule, the terms "circulation" and "recirculation" can be used interchangeably.