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Standards – To aid in the proper design, construction, operation, sanitation, and safety of new construction pools and renovation of existing swimming pools and spas, the Association of Pool and Spa Professionals (APSA) has created, or is in the process of creating, a number of American National Standards Institute (ANSI) standards. Another potential problem in swimming pools and spas is entrapment of pool users (especially young children) at suction fittings. The IBC and IRC include prescriptive safety measures intended to provide the safest possible recirculation system based on current science. These codes require that all pools and spas have dual drains that incorporate American Society of Mechanical Engineers (ASME) A112.19.8 listed suction fittings (drain covers), single 18″ x 23″ (460 mm x 585 mm) grates or larger, or, single approved channel drains.
These systems should also incorporate ASME A112.19.17 listed safety vacuum release systems. ASME A112.19.8 “Suction Fittings for Use in Swimming Pools, Wading Pools, Spas and Hot Tubs” establishes performance and material requirements for suction fittings, which provide
the first line of defense against all entrapment hazards. ASME A112.19.17 “Manufactured Safety Vacuum Release Systems for Residential and Commercial Swimming Pool. Spa, Hot Tub and Wading Pool Suction Systems” establishes performance criteria for devices and systems intended to function as emergency vacuum breakers in case of entrapment.11 Fence Made Up Of Diagonal Members (Lattice) – the maximum opening in the lattice should not exceed 1-3/4″ (44 mm).
Above Ground Pools – above ground pools should have barriers. The pool structure itself serves as a barrier or a barrier is mounted on top of the pool structure. There are two possible ways to prevent young children from climbing up into an above ground pool. The steps or ladder can be designed to be secured, locked or removed to prevent access, or, the steps or ladder can be surrounded by a barrier as previously described. Some basic guidelines for preventing a child from getting under a barrier include; Pool Barrier – the maximum clearance at the bottom of the barrier should not exceed 4″ (100 mm) above grade, when the measurement is done on the side of the barrier facing away from the pool. Above Ground Pool with Barrier on Top of Pool – if an above ground pool has a barrier on the top of the pool, the maximum vertical clearance between the top of the pool and the bottom of the barrier should not exceed 4″ (100 mm).
Gates – swimming pool barriers should be equipped with a gate or gates which restrict access to the pool. A locking device should be included in the gate design. Gates should open out from the pool and should be self-closing and self-latching. If a gate is properly designed, even if the gate is not completely latched, a young child pushing on the gate in order to enter the pool area will at least close the gate and may actually engage the latch. When the release mechanism of the self-latching device is less than 54″ (1,370 mm) from the bottom of the gate, the release mechanism for the gate should be at least 3″ (75 mm) below the top of the gate on the side facing the pool. Placing the release mechanism at this height prevents a young child from reaching over the top of a gate and releasing the latch. The gate and barrier should have no opening greater than Tiled Swimming Pools, Fountains and Spas – Technical Design Manual 35 Section 4 – Pool Project Design Considerations Tubs” – states requirements to establish layers of protection for young children against the potential for drowning and near-drowning in residential swimming pools, spa and hot tubs by limiting or delaying their access to the pool area. n APSP-10 “Standard for Performance Rating and Labeling of Pumps and Pump Motors Used on Swimming Pools, Wading Pools, Spas, Hot Tubs, Whirlpool Baths, and Water Features” – covers performance and labeling criteria for pumps and pump motors used in circulation systems on residential and public swimming pools, wading pools, spas, hot tubs, whirlpool baths, and water features. This standard applies to new and replacement installations.
International Building Code (IBC) provides basic information for swimming pool construction in Chapter 21 Masonry, Section 2103.5 and 2103.10. These are just some of the representative standards available for swimming pools and spas. For more pool standards, complete standards or for updated standards please refer to the Association of Pooland Spa Professionals (APSP) website at www.apsp.org. For more information on your local pool and spa codes please visit the International Aquatic Foundation (IAF) website at www.iafh2o.org/. Some of these standards along with their scope include12; n ANSI/NSPI-1 2003 “American National Standard for Public Swimming Pools” – covers public swimming pools to be used for bathing and operated by an owner, licensee, or concessionaire, regardless of whether a fee is charged for use. Public pools covered by this standard include Class A (used for competitive aquatic sports), Class B and C (intended for
public or semi-public recreational swimming, and Class F (wading). n ANSI/NSPI-3 1999 “American National Standard for Permanently Installed Residential Spas” – covers permanently installed residential spas that are used for bathing and are operated by an owner. This standard is meant to cover certain aspects of the design, equipment, operation, installation, new construction, and rehabilitation of spas. n ANSI/NSPI-4 2007 “American National Standard for Above-ground/On-ground Residential Swimming Pools” – describes certain criteria for the design, manufacturing,
testing, care, and use of above-ground/onground residential (Type O) non-diving pools and their components. n ANSI/NSPI-5 2003 “American National Standard for Residential In-ground Swimming Pools” – applies to permanently installed residential in-ground swimming pools intended for noncommercial use as a swimming pool by not more than three owner families and their guests and exceeding 24″ (60 cm) in water depth and having a volume over 3,250 gallons (12,300 L). It covers specifications for new construction and rehabilitation for residential in-ground swimming pools and includes design, equipment, operation, and installation.