grate design

Suction-entrapment incidents and their causes have been of passionate interest to mechanical engineer and commercial pool designer William N. Rowley through more than 30 years of tests, investigations, debates and high-profile lawsuits. Here, he uses his standing as an expert to define what’s involved – and to promote safe engineering and construction practices while offering a comprehensive look at ways of preventing these incidents.
Reasonable Choices
It's one of the most horrific things that can happen to anyone who enters a pool or a spa:  One moment you're having fun or relaxing, and in a terrible instant you're caught in a devastatingly painful and potentially fatal situation. Most people who become entrapped by pool, spa or wading-pool plumbing do survive, but all too often they suffer life-altering injuries.  As with any aquatic safety issue, we all agree these incidents should be prevented, and a great many talented people from government, trade associations, research institutions, equipment manufacturers and consumer-safety groups have invested a tremendous amount of time in examining suction entrapment.  For all of that effort, however, seeing our way to
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