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Anti-Entrapment
Drain Covers
Anti-Entrapment drain covers can be purchased at local pool
supply companies
and at online stores. The Star 100 and Anti-Hair
Snare Plus covers both meet the current ASME/ANSI
A112.19.8 performance requirements for preventing entrapment
and also improved
standard requirements under discussion and revision within
the aquatic safety community.
The two covers work in different
ways to prevent the suction of the drain from causing
body/limb entrapment, disembowelment, or hair entanglement.
Below is more detailed
information about how each of these covers work. General suction design
- Water flows underneath the cover through the scalloped
edges, so the strongest suction is not pulling straight
downward.
Preventing body/limb entrapment and disembowelment
- The design, with a 13-inch diameter and scalloping
along the edges, prevents the suction from making a complete
seal holding a person’s body against the drain.
Preventing hair entanglement
- The water flow through the rectangular holes in the
drain cover is not strong enough to
trap hair in or below the drain cover. (The flow through
the rectangular holes is less than 1.2 feet per second
if the pump flow rate is 80 gallons per minute; the existing
maximum flow rate in the ASME/ANSI A112.19.8 standard
is 1.5 feet per second.)
The Star 100 is made with a UV inhibitor to keep the cover
from breaking down as a result of exposure to sunlight.
This prevents any plastic material from leaching into the
water and also helps the cover last longer. (If a cover
is broken, there is a higher risk of entrapment as the suction
force is greater.) If a drain cover is broken, stop the
pump and close the pool or spa until it is replaced. Never
operate any pool or spa if the drain cover is broken or
missing. The Star 100 cover is not recommended for use on a spa
or hot tub, as larger pumps with
higher flow rates are generally used in spas and hot tubs.
The Star 100 utilizes a low flow
rate to qualify as an anti-entrapment cover. It is certified
at 80 gallons per minute
maximum. The Star 100 drain cover is manufactured by World Wide
Sports, L.L.C. Anti-Entrapment drain covers can be purchased at local
pool supply companies
and at online stores.
The Star 100 and Anti-Hair Snare Plus covers both meet
the current ASME/ANSI
A112.19.8 performance requirements for preventing entrapment
and also improved
standard requirements under discussion and revision within
the aquatic safety community.
The two covers work in different ways to prevent the suction
of the drain from causing
body/limb entrapment, disembowelment, or hair entanglement.
Below is more detailed
information about how each of these covers work. Anti-Hair Snare Plus Preventing body/limb entrapment and disembowelment
- The top of the drain cover has a dome shape with wedges
at different heights. This
prevents the suction from making a complete seal holding
a person’s body against the
drain.
Preventing hair entanglement
- The shape of the wedges on the top of the cover prevents
hair from getting caught— the hair naturally flows
to the center of the cover and can be pulled out easily.
The geometry of the design precludes hair entanglement.
It is certified at 109 gallons per minute.
The Anti-Hair Snare Plus is made with a UV inhibitor to
keep the cover from breaking down as a result of exposure
to sunlight. This prevents any plastic material from leaching
into the water and also helps the cover last longer. The
cover is also very strong; a truck can drive over it without
breaking it. (If a cover is broken, there is a higher risk
of entrapment as the suction force is greater.) If a drain
cover is broken, stop the pump and close the pool or spa
until it is replaced. Never operate any pool or spa if the drain cover is broken
or missing. The Anti-Hair Snare Plus cover can only be used in the
HORIZONTAL position for the
anti- entanglement feature to work correctly. This cover
should not be used if the drain is
positioned vertically. The Anti-Hair Snare Plus drain cover is manufactured by
Triodyne Safety Systems, L.L.C .
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