Section 110. Overflow facilities

Provision shall be made for removal of floating material and scum from the surface of the water.

If a recessed type of gutter located near the top of the walls is to be used, the gutter shall have a minimum depth of three inches and shall be of a design which will permit satisfactory cleaning of the overflow channel. The gutter drain outlets shall be spaced around the pool not more than 15 feet on centers. The gutter bottom shall slope toward these outlets with a minimum slope of 1/8 of an inch to the foot. The drains shall not be less than 2 ½ inches in diameter and the total orifice area of the grating shall be at least twice the cross-sectional area of the outlet pipe.

For pools with overflowing gutters, a water level control tank shall be provided which will effectively provide for maintenance of the water level so as to produce constant surface skimming action at all times.

The above described gutter may be replaced by an arrangement of overflow devices in the pool walls which provides the proper removal of scum and floating material. There shall be one such device for each 400 square feet of pool area with a minimum of four per pool, each of which shall be individually controlled.

If the recirculation system is designed for water to enter the bottom portion of the pool and overflow the top, then adequate drainage of the scum and floating material from the deck must be provided. This drainage may be by a continuous drain or multiple drains. (See also 12VAC5-460-80.) In multiple drains, each drain grating shall have a total orifice area of as least four times the cross-sectional area of drain pipe, which shall have a minimum diameter of 2 ½ inches. In the use of drain channels, continuous to and around the perimeter of the pool, the channel grating shall be designed so as not to create a hazard to fingers and toes and be restraint to corrosion.

Historical Notes

Derived from VR355-35-05 § 11, eff. March 1, 1962.

Statutory Authority

§ 35.1-13 of the Code of Virginia.