Section 435.08 - Inlets and Outlets(1) Inlets for fresh or recirculated water in swimming, wading and special purpose pools should be located to produce, so far as possible, uniform circulation of water and the maintenance of uniform chlorine or other approved disinfectant residual throughout the entire pool. Inlets for the recirculation system shall be submerged, individually adjustable, and shall be designed and installed to reduce the escape of chlorine or other disinfectant.(2) An over the rim fill spout, if used as a fresh water inlet, shall be located under the diving board, adjacent to a ladder or otherwise properly shielded so as not to create a hazard. Its open end shall have no sharp edges and shall not protrude more than two inches beyond the edge of the pool and shall be at least six inches above the maximum possible water level.(3) All swimming, wading and special purpose pools shall be constructed in the following manner: (a) Return inlet(s) and suction outlet(s) from the recirculation system shall be designed so as to not constitute a hazard to the bather. Where skimmers are used, the inlet(s) shall be located so as to help bring floating particles within the range of the skimmers.(b) A main drain suction outlet(s) shall be provided in the lowest point of the pool floor. At least two main drains shall be provided for every swimming or wading pool more than 30 feet wide. The spacing of the main drain(s) or suction outlet(s) shall not be greater than 20 feet apart across from the deepest section of the pool nor more than 15 feet from the nearest side wall. All outlets shall be covered with suitable protective covers or grates which have been tested and approved by a nationally recognized testing laboratory. The main drain suction outlet(s) and outlet drain cover(s) shall, except skimmers, be installed in a way that they cannot be removed without the use of tools; the total velocity through grate openings shall not exceed two feet per second; the open area in the grates shall be of such design as to prevent physical entrapment of fingers, toes, etc. The system shall provide at least one antivortex main drain outlet. In depths of four feet six inches or less, the anitvortex drain shall not provide a tripping or stubbing hazard to the feet.(c) If the suction outlet is a single (such as a vacuum cleaner system) or if there are multiple suction outlets which can be isolated by valves, then each suction outlet shall be protected against user entrapment by either an antivortex cover or other means.(d) A minimum of two suction outlets shall be provided for each pump in the suction outlet system, separated by a minimum of three feet or located on two different planes, i.e. one on the bottom and one on the vertical wall or one each on two separate vertical walls. These suction out lets shall be plumbed such that water is drawn through them simultaneously through a common line to the pump .(e) The spacing of the return inlets shall be not greater than 20 feet on center. In no case shall there be less than two such inlets per 600 square feet, or fraction thereof. The total velocity through the inlets shall not exceed 15 feet per second.(4) All swimming, wading and special purpose pools with any type of suction outlet cover(s), including those used for main drains, hydrotherapy or automatic cleaning outlets, which are missing, broken, loose, create an obstruction or are secured in such a way that the cover can be removed without the use of tools (excluding skimmers or gutters) shall be immediately closed for use until such repairs have been made to eliminate the hazard.(5) All special purpose and wading pools shall, by July 1, 1998 install an emergency shut off pump switch, in an accessible location, prominently marked and within plain sight at the special purpose or wading pool.