Current through Register 1531, September 27, 2024
(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.
