APPENDIX G
SWIMMING POOLS, SPAS AND HOT TUBS


  • (The provisions contained in this appendix are not mandatory unless specifically referenced in the adopting ordinance.)

    SECTION AG101
    GENERAL

    AG101.1 General.
    The provisions of this appendix shall control the design and construction of swimming pools, spas and hot tubs installed in or on the lot of a one- or two-family dwelling.

    AG101.2 Pools in flood hazard areas.
    Pools that are located in flood hazard areas established by Table R301.2(1), including above-ground pools, on-ground pools and in-ground pools that involve placement of fill, shall comply with Section AG101.2.1 or AG101.2.2.

    Exception: Pools located in riverine flood hazard areas which are outside of designated floodways.

    AG101.2.1 Pools located in designated floodways.
    Where pools are located in designated floodways, documentation shall be submitted to the building official which demonstrates that the construction of the pool will not increase the design flood elevation at any point within the jurisdiction.

    AG101.2.2 Pools located where floodways have not been designated.
    Where pools are located where design flood elevations are specified but floodways have not been designated, the applicant shall provide a floodway analysis that demonstrates that the proposed pool will not increase the design flood elevation more than 1 foot (305 mm) at any point within the jurisdiction.

    SECTION AG102
    DEFINITIONS

    AG102.1 General.
    For the purposes of these requirements, the terms used shall be defined as follows and as set forth in Chapter 2.

    ABOVE-GROUND/ON-GROUND POOL. See “Swimming pool.”

    BARRIER. A fence, wall, building wall or combination thereof which completely surrounds the swimming pool and obstructs access to the swimming pool.

    HOT TUB. See “Swimming pool.”

    IN-GROUND POOL. See “Swimming pool.”

    RESIDENTIAL. That which is situated on the premises of a detached one- or two-family dwelling, or a one-family townhouse not more than three stories in height.

    SPA, NONPORTABLE. See “Swimming pool.”

    SPA, PORTABLE. A nonpermanent structure intended for recreational bathing, in which all controls, water-heating and water-circulating equipment are an integral part of the product.

    SWIMMING POOL. Any structure intended for swimming or recreational bathing that contains water more than 24 inches (610 mm) deep. This includes in-ground, above-ground and on-ground swimming pools, hot tubs and spas.

    SWIMMING POOL, INDOOR. A swimming pool which is totally contained within a structure and surrounded on all four sides by the walls of the enclosing structure.

    SWIMMING POOL, OUTDOOR. Any swimming pool which is not an indoor pool.

    SECTION AG103
    SWIMMING POOLS

    AG103.1 In-ground pools.
    In-ground pools shall be designed and constructed in compliance with ANSI/NSPI-5.

    AG103.2 Above-ground and on-ground pools.
    Above-ground and on-ground pools shall be designed and constructed in compliance with ANSI/NSPI-4.

    AG103.3 Pools in flood hazard areas.
    In flood hazard areas established by Table R301.2(1), pools in coastal high-hazard areas shall be designed and constructed in compliance with ASCE 24.

    SECTION AG104
    SPAS AND HOT TUBS

    AG104.1 Permanently installed spas and hot tubs.
    Permanently installed spas and hot tubs shall be designed and constructed in compliance with ANSI/NSPI-3.

    AG104.2 Portable spas and hot tubs.
    Portable spas and hot tubs shall be designed and constructed in compliance with ANSI/NSPI-6.

    SECTION AG105
    BARRIER REQUIREMENTS

    AG105.1 Application.
    The provisions of this appendix shall control the design of barriers for residential swimming pools, spas and hot tubs. These design controls are intended to provide protection against potential drownings and near-drownings by restricting access to swimming pools, spas and hot tubs.

    AG105.2 Outdoor swimming pool.
    An outdoor swimming pool, including an in-ground, above-ground or on-ground pool, hot tub or spa, shall be surrounded by a barrier which shall comply with the following:

    1. The top of the barrier shall be at least 48 inches (1219 mm) above grade measured on the side of the barrier which faces away from the swimming pool. The maximum vertical clearance between grade and the bottom of the barrier shall be 2 inches (51 mm) measured on the side of the barrier which faces away from the swimming pool. Where the top of the pool structure is above grade, such as an above-ground pool, the barrier may be at ground level, such as the pool structure, or mounted on top of the pool structure. Where the barrier is mounted on top of the pool structure, the maximum vertical clearance between the top of the pool structure and the bottom of the barrier shall be 4 inches (102 mm).

    2. Openings in the barrier shall not allow the passage of a 4-inch-diameter (102 mm) sphere.

    3. Solid barriers which do not have openings, such as a masonry or stone wall, shall not contain indentations or protrusions, except for normal construction tolerances and tooled masonry joints.

    4. Where the barrier is composed of horizontal and vertical members, and the distance between the tops of the horizontal members is less than 45 inches (1143 mm), the horizontal members shall be located on the swimming pool side of the fence. Spacing between vertical members shall not exceed 13/4 inches (44 mm) in width. Where there are decorative cutouts within vertical members, spacing within the cutouts shall not exceed 13/4 inches (44 mm) in width.

    5. Where the barrier is composed of horizontal and vertical members, and the distance between the tops of the horizontal members is 45 inches (1143 mm) or more, spacing between vertical members shall not exceed 4 inches (102 mm). Where there are decorative cutouts within vertical members, spacing within the cutouts shall not exceed 13/4 inches (44 mm) in width.

    6. Maximum mesh size for chain link fences shall be a 21/4-inch (57 mm) square, unless the fence has slats fastened at the top or the bottom which reduce the openings to not more than 13/4 inches (44 mm).

    7. Where the barrier is composed of diagonal members, such as a lattice fence, the maximum opening formed by the diagonal members shall not be more than 13/4 inches (44 mm).

    8. Access gates shall comply with the requirements of Items 1 through 7, and shall be equipped to accommodate a locking device. Pedestrian access gates shall open outward away from the pool, and shall be self-closing and have a self-latching device. Gates, other than pedestrian access gates, shall have a self-latching device. Where the release mechanism of the self-latching device is located less than 54 inches (1372 mm) from the bottom of the gate, the release mechanism and openings shall comply with the following:

    8.1. The release mechanism shall be located on the pool side of the gate at least 3 inches (76 mm) below the top of the gate; and

    8.2. The gate and barrier shall have no opening larger than 1/2 inch (12.7 mm) within 18 inches (457 mm) of the release mechanism.

    9. Where a wall of a dwelling serves as part of the barrier, one of the following conditions shall be met:

    9.1. The pool shall be equipped with a powered safety cover in compliance with ASTM F 1346;

    9.2. Doors with direct access to the pool through that wall shall be equipped with an alarm which produces an audible warning when the door and/or its screen, if present, are opened. The alarm shall be listed and labeled in accordance with UL 2017. The deactivation switch(es) shall be located at least 54 inches (1372 mm) above the threshold of the door; or

    9.3. Other means of protection, such as self-closing doors with self-latching devices, which are approved by the governing body, shall be acceptable as long as the degree of protection afforded is not less than the protection afforded by Item 9.1 or 9.2 described herein.

    10. Where an above-ground pool structure is used as a barrier or where the barrier is mounted on top of the pool structure, and the means of access is a ladder or steps:

    10.1. The ladder or steps shall be capable of being secured, locked or removed to prevent access; or

    10.2. The ladder or steps shall be surrounded by a barrier which meets the requirements of Items 1 through 9. When the ladder or steps are secured, locked or removed, any opening created shall not allow the passage of a 4-inch-diameter (102 mm) sphere.

    AG105.3 Indoor swimming pool.
    Walls surrounding an indoor swimming pool shall comply with Item 9 of Section AG105.2.

    AG105.4 Prohibited locations.
    Barriers shall be located to prohibit permanent structures, equipment or similar objects from being used to climb them.

    AG105.5 Barrier exceptions.
    Spas or hot tubs with a safety cover which comply with ASTM F 1346 shall be exempt from the provisions of this appendix.

    SECTION AG106
    ENTRAPMENT PROTECTION FOR SWIMMING
    POOL AND SPA SUCTION OUTLETS

    AG106.1 General.
    Suction outlets shall be designed and installed in accordance with ANSI/APSP-7.

    SECTION AG107
    ABBREVIATIONS

    AG107.1 General.

    ANSI—American National Standards Institute
    11 West 42nd Street
    New York, NY 10036

    APSP—Association of Pool and Spa Professionals
    NSPI—National Spa and Pool Institute
    2111 Eisenhower Avenue
    Alexandria, VA 22314

    ASCE—American Society of Civil Engineers
    1801 Alexander Bell Drive
    Reston, VA 98411-0700

    ASTM—ASTM International
    100 Barr Harbor Drive
    West Conshohocken, PA 19428

    UL—Underwriters Laboratories, Inc.
    333 Pfingsten Road
    Northbrook, IL 60062-2096

    SECTION AG108
    REFERENCED STANDARDS

    AG108.1 General.

    ANSI/NSP

    ANSI/NSPI-3—99Standard for Permanently Installed
    Residential Spas
    AG104.1
    ANSI/NSPI-4—99Standard for Above-ground/
    On-ground Residential
    Swimming Pools
    AG103.2
    ANSI/NSPI-5—03Standard for Residential
    In-ground Swimming Pools
    AG103.1
    ANSI/NSPI-6—99Standard for Residential
    Portable Spas
    AG104.2

    ANSI/APSP

    ANSI⁄APSP-7—06Standard for Suction Entrapment
    Avoidance in Swimming Pools,
    Wading Pools, Spas, Hot Tubs
    and Catch Basins
    AG106.1

    ASCE

    ASCE⁄SEI-24—05Flood-resistant Design and
    Construction
    AG103.3

    ASTM

    ASTM F 1346—91
    (2003)
    Performance Specification
    for Safety Covers and Labeling
    Requirements for All Covers
    for Swimming Pools Spas and
    Hot Tubs
    AG105.2, AG105.5

    UL

    UL 2017—2000Standard for General-purpose
    Signaling Devices and
    Systems—with revisions
    through June 2004
    AG105.2
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