(1) The pool, spa, or other water feature shall be equipped with a continuously operating disinfectant feeder. The water must be disinfected by a chemical which distributes an easily measured, free available chlorine or bromine residual. The water shall at all times contain sanitizer residuals as required in this rule.

(2) All proposed sanitizers must be approved by the department. Only Environmental Protection Agency (EPA) registered sanitizers approved by the department shall be used.

(3) All disinfectant equipment other than compressed chlorine gas feeders must be approved by the National Sanitation Foundation International.

(4) Sanitizer and pH shall be monitored and controlled automatically by suitable regulators. After March 1, 2010, all new pools, spas, and other water features and all existing pools, spas, and other water features that undergo major renovations shall install automatic chemical feed equipment to adjust chemical levels. Automatic controllers shall be standardized in accordance with the manufacturer's instructions.

(5) Chemical feeders must be capable of supplying not less than the equivalent of three pounds of chlorine for outdoor pools or one pound of chlorine for an indoor pool, per 10,000 gallons of pool, spa, or other water feature capacity during a 24-hour period.

(6) Skimmer baskets shall not be used as chemical feeders.

(7) A change in the method or type of disinfection used must be approved in writing by the department before it is implemented.

(8) The water must be continuously disinfected by a chemical which imparts an easily measured, free available residual effect. The water shall contain sanitizer residuals as required in these rules at all times. Only EPA-registered sanitizers approved by the department shall be used.