Section R. 325.2146 - Water agitation and other pump systemsRule 46.
(1) If agitation of the water in a spa pool is provided or if other pump systems in a swimming pool are provided, then a pool owner shall ensure that the agitation or other water movement is accomplished with a pump separate from the water treatment and recirculation system pump.(2) A pool owner shall ensure that an electrical switch, timer, or emergency shutoff device to operate the agitation system pump is not reachable from the pool.(3) A swimming pool owner shall equip a wave pool with not less than 2 emergency wave shutoff devices and shall locate 1 device on each side of the pool at a fixed lifeguard station.(4) If an air induction system is provided, a pool owner shall ensure that the system meets both of the following requirements: (a) Is designed to prevent water backup that could cause electrical shock hazards.(b) Is designed so the air intake source does not permit the introduction of toxic fumes or other contaminants.Mich. Admin. Code R. 325.2146