Downloadable Literature
Welcome to Anti-Hair Snare
Our original PVC Anti-Hair Snare Plus exceeds every safety requirement specified by the latest drain cover standard, ASME A112.19.8-2007.
Hair Entanglement: The standard sets an acceptable flow rate that statistically limits the occurrence of hair entanglement. The patented Anti-Hair Snare Plus provides a deterministic mechanism that sheds hair or string or threads that might be accidentally or deliberately entrained into the drain cover. It also avoids the politically incorrect selection of hair type adopted by the standard.
Body Entanglement: The design of the Anti-Hair Snare Plus provides the maximum resistance to the formation of a body seal of any equal diameter drain cover meeting the ASME standard. Children cannot be entrapped; it may not be possible even for an adult.
Evisceration/Limb Entrapment: There is no possibility of a child sealing the Anti-Hair Snare Plus with his or her buttock. Certainly, if the drain cover is missing, disembowelment and limb entrapment is possible. To minimize the probability that the drain design is missing, the Anti-Hair Snare Plus provides the following features:
1. The best manual and warning signs admonishing users to keep the drain cover in place.
2. Optimum stainless steel fasteners for the pool environment.
3. Non-slotted screw heads.
4. The highest cover strength. The cover illustrated in Fig. 1 has been used for 7 years in a Florida outdoor swimming pool. It will still support a truck without damage.
5. Hugh resistance to Grip It and Rip It assaults on the drain cover to pull it from its mooring. The Anti-Hair Snare Plus greatly exceeds the pull strength required by the standard.
6. Exceptional proven UV resistance. When all other drain covers were made using ABS plastic, the Anti-Hair Snare Plus adopted PVC the same material used for five decades in home and pool piping. After nine years and 80,000 units, no degradation has been reported to, or observed by, Triodyne Safety Systems.
Finger Entrapment: The Anti-Hair Snare Plus opted to follow the Australian and New Zealand standard which restricted the drain cover apertures to 8 mm. The new standard has adopted an inferior procedure which allows openings with minimum dimensions as large as one (1) inch. This allows bathing caps, swimming suit draw strings and fingers to enter the drain cover. Teenagers and adults can grip the covers and pull them from compromised sumps and rings.
The new ASME A112.19.8-2007 standard has specified an accelerated UV test in an attempt to simulate Mother Nature. Unfortunately, this test subjects candidate drain covers to temperatures of 158 F which, of course, they will never experience in a pool. The PVC material used in the Anti-Hair Snare Plus melts at 158 F before its UV resistance can be assessed.
The new material is currently undergoing certification testing. You will judge for yourself; but we think the finish on the new Anti-Hair Snare Plus is spectacular. We will resume our sales as soon as the certification is completed.
We are expected to have our certification completed by November.
Since Triodyne wrote its devastating expose of the previous ANSI pool standard [Ref 1], a number of important changes have occurred in our industry:
ANSI no longer sponsors the drain cover standard. The famous NSPI trade association has been dissolved. Flat drain covers have all but disappeared. Anti-Vortex has been debunked as a safety concept. Criminal charges have been brought against a pool installer for alleged violations of safety regulations. A federal law, the Virginia Graeme Baker Pool and Spa Act, requires that drain covers in public pools comply with the otherwise voluntary standard ASME A112.19.8-2007 after December 19, 2008. A new product liability theory, Alternative Design Theory [Ref. 2], has been added to the legal arsenal to attack tort feasors.
Has aquatic safety improved?
Ref. 1: Barnett, Ralph L. and Poczynok, Peter J., Critique: Drain Cover Standard ASME/ANSI - A112.19.8M-1987 (1996), Case Study: Steering Wheel, Triodyne Safety Brief, Vol. 19, No. 4, February 2002.
b. IMECE 2002-32457, Proceedings of IMECE 2002, ASME International Mechanical Engineering Congress & Exposition, New Orleans, LA, November 17-22, 2002.
Ref. 2: Barnett, Ralph L., Design Defect: Doctrine of Alternative Design, Triodyne Safety Brief, Vol. 13, No. 4, June 1998.
b. The Expert Witness Journal, Vol. 10, No. 9, September 1998, pp. 1 & 3.