Safety Guidelines for Home Pools
Swimming pools should always be happy places. Unfortunately, each year thousands of American families confront
swimming pool tragedies, drownings and near-drownings of young children. These are guidelines for pool barriers
that can help prevent most submersion incidents involving young children. These guidelines are not intended as the
sole method to minimize pool drowning of young children, but include helpful safety tips for safer
pools.
Each year, hundreds of young children die and thousands come close to death due to submersion in residential
swimming pools. The Consumer Product Safety Commission (CPSC) has estimated that each year, about 300 children
under the age of 5 drown in swimming pools. Hospital emergency-room treatment is required for more than 2,000
children under 5 who were submerged in residential pools. The CPSC did an extensive study of swimming pool
accidents, both fatal drownings and near-fatal submersions, in California, Arizona, and Florida -- states in which
home swimming pools are very popular and used during much of the year.
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In California, Arizona and Florida,
drowning was the leading cause of accidental
death in and around the home for
children under the age of 5.
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Seventy-five percent of the children involved in swimming pool submersion or drowning accidents were between 1
and 3 years old.
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Boys between 1 and 3 were the most likely victims of fatal drownings and near-fatal submersions in residential
swimming pools.
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Most of the victims were in the presence of one or both parents when the swimming pool accident occurred.
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Nearly half of the child victims were last seen in the house before the pool accident occurred. In addition,
23% of the accident victims were last seen on the porch or patio, or in the yard.
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This means that 69% of the children who became victims in swimming pool accidents were not expected to be in or
at the pool, but were found drowned or submerged in the water.
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Sixty-five percent of the accidents occurred in a pool owned by the victim’s immediate family, and 33% of the
accidents occurred in pools owned by relatives or friends.
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Fewer than 2% of the pool accidents were the result of children trespassing on property where they didn’t live
or belong.
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Seventy-seven percent of the swimming pool accident victims had been missing for five minutes or less when they
were found in the pool, drowned or submerged.
The speed with which swimming pool drownings and submersions can occur is a special concern: by the time a child’s
absence is noted, the child may have drowned. Anyone who has cared for a toddler knows how fast young children can
move. Toddlers are inquisitive and impulsive, and lack a realistic sense of danger. These behaviors, coupled with a
child’s ability to move quickly and unpredictably, make swimming pools particularly hazardous for households with
young children.
Swimming pool drownings of young
children have another particularly insidious
feature: these are silent deaths. It is
unlikely that splashing or screaming will
occur to alert a parent or caregiver that a
child is in trouble.
The best way to reduce
child drownings in residential pools is
for pool owners to construct and maintain
barriers that prevent young children
from gaining access to pools.
However, there are no substitutes for diligent
supervision.
Why the Swimming Pool Guidelines Were Developed?
Young child can get
over a pool barrier if
the barrier is too low, or
if the barrier has handholds or
footholds for a child to use
for
climbing. The guidelines recommend that the top of a pool barrier be at least 48 inches above grade, measured on
the side of the barrier which faces away from the swimming pool. Eliminating handholds and footholds, and
minimizing the size of openings in a barrier’s construction, can prevent inquisitive children from climbing pool
barriers.
For a solid barrier,
no indentations or protrusions
should be present, other than
normal construction tolerances
and masonry joints. For a barrier (fence) made up of horizontal and vertical members, if
the distance between the
tops of the horizontal members
is less than 45 inches, the horizontal members should be
on the swimming pool-side of
the fence. The spacing of the
vertical members should not
exceed 1-3/4 inches. This size
is based on the foot-width of a
young child, and is intended to
reduce the potential for a
child to gain a foothold. If
there are any decorative cutouts
in the fence, the space
within the cutouts should not
exceed 1-3/4 inches.
The definition of pool includes spas and hot tubs. The swimming pool-barrier guidelines, therefore, apply to
these
structures, as well as to conventional swimming pools.
How to Prevent a Child from
Getting OVER a Pool Barrier?
A successful pool barrier prevents a child from getting OVER,
UNDER or THROUGH, and
keeps the child from gaining
access to the pool except when
supervising adults are present.
The Swimming Pool-Barrier Guidelines
If the distance between the
tops of the horizontal members
is more than 45 inches, the
horizontal members can be on
the side of the fence facing
away from the pool. The spacing
between vertical members
should not exceed 4 inches.
This size is based on the head-breadth and chest depth of a
young child, and is intended to
prevent a child from passing
through an opening. Again, if
there are any decorative
cutouts in the fence, the space
within the cutouts should not
exceed 1-3/4 inches.
For a chain-link fence, the mesh size should not exceed 1-1/4 inches square, unless slats fastened at the top or
bottom of the fence are used to reduce mesh openings to no more than 1-3/4 inches.
For a fence made up of
diagonal members
(lattice work),
the maximum opening in
the lattice should not exceed
1-3/4 inches.
Above-ground pools should have barriers. The pool structure itself can sometimes serves as a barrier, or a barrier
can be mounted on top of the pool structure. Then, 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, such as those described above. For any pool
barrier, the maximum clearance at the bottom of the barrier should not exceed 4 inches above grade, when the
measurement is done on the side of the barrier facing away from the 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 inches. Preventing a child from getting through a pool
barrier can be done by restricting the sizes of openings in a barrier, and by using self-closing and self-latching
gates.
To prevent a young child
from getting through a fence
or other barrier, all openings
should be small enough so that
a 4-inch diameter sphere cannot
pass through. This size is
based on the head- breadth and
chest-depth of a young child.
Gates
There are two kinds of gates which might be found on a residential property. Both can play a part in the design of
a swimming pool barrier.
Pedestrian gates
are the gates people
walk through. 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's 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 inches
from the bottom of the gate,
the release mechanism for the
gate should be at least 3 inches
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.
Also, the gate and barrier
should have no opening
greater than 1/2-inch within
18 inches of the latch release
mechanism. This prevents a
young child from reaching
through the gate and releasing
the latch.
Other gates should be equipped with self-latching devices. The self-latching devices should be installed as
described for pedestrian gates.
How to Prevent a Child from Getting UNDER or THROUGH a Pool Barrier
In many homes, doors open directly onto the pool area or onto a patio which leads to the pool. In such cases, the
wall of the house is an important part of the pool barrier, and passage through any doors in the house wall should
be controlled by security measures. The importance of controlling a young child’s movement from the house to the
pool is demonstrated by the statistics obtained during the CPSC’s study of pool incidents in California, Arizona
and Florida. Almost half (46%) of the children who became victims of pool accidents were last seen in the house
just before they were found in the pool.
All doors which give
access to a swimming pool
should be equipped with an
audible alarm which sounds
when the door and/or screen
are opened. The alarm should
sound for 30 seconds or more
within seven seconds after the
door is opened. It should also be loud,
at least 85 decibels,
when measured 10 feet away
from the alarm mechanism.
The alarm sound should be
distinct from other sounds in
the house, such as the telephone,
doorbell and smoke
alarm. The alarm should have
an automatic re-set feature.
Because adults will want
to pass through house doors in
the pool barrier without setting
off the alarm, the alarm should
have a switch that allows
adults to temporarily de-activate
the alarm for up to 15
seconds. The de-activation
switch could be a touch pad
(keypad) or a manual switch,
and should be located at least
54 inches above the threshold
of the door covered by the
alarm. This height was selected
based on the reaching ability
of young children.
Power safety covers can be installed on pools to serve as security barriers. Power safety covers should conform to
the specifications in ASTM F 1346-91. This standard specifies safety performance requirements for pool covers to
protect young children from drowning. Self-closing doors with self-latching devices could also be used to safeguard
doors which give ready access to a swimming pool.
Indoor Pools
When a pool is located completely within a house, the
walls that surround the pool
should be equipped to serve as
pool safety barriers. Measures
recommended above where a
house wall serves as part of a
safety barrier also apply for all
the walls surrounding an
indoor pool.
Guidelines
An outdoor swimming pool, including an
in-ground, above-ground, or on-ground pool,
hot tub, or spa, should be provided with a
barrier which complies with the
following:
1. The top of the barrier should be at least 48 inches 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 should be 4
inches 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 should be 4
inches.
2. Openings in the barrier should not
allow passage of a 4-inch diameter
sphere.
3. Solid barriers, which do not have openings, such as a masonry and stone wall, should 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, the horizontal members should be located on the
swimming pool-side of the fence. Spacing between vertical members should not exceed 1-3/4 inches in width. Where
there are decorative cutouts, spacing within the cutouts should not exceed 1-3/4 inches 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 or more, spacing between vertical members should not exceed 4 inches. Where there
are decorative cutouts, spacing within the cutouts should not exceed 1-3/4 inches in width.
6. The maximum mesh size for chain-link
fences should not exceed 1-3/4 inch
square, unless the fence is provided with
slats fastened at the top or the bottom
which reduce the openings to no more
than 1-3/4 inches.
7. Where the barrier is composed of diagonal members, such as a lattice fence, the maximum opening formed by the
diagonal members should be no more than 1-3/4 inches.
8. Access gates to the pool should
be equipped to accommodate a
locking device. Pedestrian access gates
should open outward, away from the pool,
and should be self-closing and have a self-latching
device. Gates other than pedestrian
access gates should have a self-latching
device, where the release mechanism of
the self-latching device is located less
than 54 inches from the bottom of the
gate.
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The release mechanism should be located on the pool-side of the gate at
least 3 inches below the top of the gate.
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The gate and barrier should have no opening greater than 1/2-inch within 18 inches of the release mechanism.
9. Where a wall of a dwelling serves as part of the barrier, one of the following should apply:
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All doors with direct access to the pool
through that wall should be equipped with
an alarm which produces an audible warning
when the door and its screen, if present,
are opened. The alarm should sound
continuously for a minimum of 30 seconds
within seven seconds after the
door is opened. The alarm should have a minimum
sound pressure rating of 85 dBA at
10 feet, and the sound of the alarm should
be distinctive from other household
sounds, such as smoke alarms, telephones
and doorbells. The alarm should automatically
re-set under all conditions. The
alarm should be equipped with manual
means, such as touchpads or switches, to
temporarily de-activate the alarm for a single
opening of the door from either direction.
Such de-activation should last for no
more than 15 seconds. The de-activation
touch pads or switches should be located at
least 54 inches above the threshold of the
door.
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The pool should be equipped with a power safety cover which complies with ASTM F1346-91.
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Other means of protection, such as self-closing doors with self-latching devices, are acceptable as long as the
degree of protection afforded is not less than the protection afforded by the above.
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, then:
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The ladder to the pool or steps
should be capable of being secured,
locked or removed to prevent access.
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The ladder or steps should be surrounded
by a barrier. When the ladder
or steps are secured, locked, or removed,
any opening created should not allow the
passage of a 4-inch diameter sphere
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These guidelines are intended to provide a means of protection against potential drownings of children under 5
years of age by restricting access to residential swimming pools, spas and hot tubs.
Exemptions
A portable spa with a safety cover which complies with ASTM F1346-91 should be exempt from the guidelines presented
here. Swimming pools, hot tubs, and non-portable spas with safety covers should not be exempt from these
provisions.
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