Swimming Pool Alarms /The Villages Home Inspections
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HOME INSPECTOR USA services the following counties: Sumter, Lake and Marion. Pools:
Drowning remains the second leading killer of children under the age of 14 and, in many Sunbelt states, drowning tops the list. Approximately 350 children under the age of 5 drown in swimming pools annually, mostly in residential settings. Many of these deaths occur when unsupervised children enter a pool and are unable to swim or exit, resulting in drowning or near-drowning within minutes. In these situations, pool alarms may have reduced the response time of adults, perhaps saving the child.
In December 2007, the Virginia Graeme Baker Pool and Spa Safety Act took effect, which created a voluntary grant program that encourages states to pass legislation for pool and spa safety. The bill requires states to write laws that call for pool alarms, as well as door alarms, pool covers, and self-closing/self-latching gates. Currently, however, only California, Connecticut and New York have passed such legislation.
Pool Alarm Types
- surface wave sensor: This type of sensor floats on the water and incorporates an electrical circuit that includes two contacts. One of these contacts rests in the water while the other is adjusted to remain above the water's surface. When a surface wave touches the above-surface contact, the electrical circuit is completed, causing an alarm to sound. Sensitivity can be increased or decreased by moving the above-surface contact closer or further from the water surface.
- sub-surface disturbance sensor: Mounted to the pool wall below the water surface, this type of sensors is activated by wave-induced pressure changes. One design relies on the movement of a magnetic float below a magnetic sensor, while another design relies on a pressure-sensitive switch. Sub-surface alarms can also be used in conjunction with solar covers, whereas the surface wave-sensor alarms cannot.
- wristband: This device is worn around the childï¿½s wrist and it cannot be removed without a key. The alarm will activate when the wristband becomes wet, which creates opportunities for false alarms, such as when the child washes his or her hands, or walks in the rain.
Pool alarms can be used to save dogs and cats, too. Data show that one of every 1,027 pets drowns in pools each year, which is a statistically higher risk than the drowning threat for small children. The reason here is obvious: pets are more likely to be allowed to roam free and unsupervised compared to small children, especially in rural areas where nearby traffic is not a danger. Also, pool fences may thwart children, while dogs and cats can jump or climb their way to the other side. Not all dogs are good swimmers, though, and even healthy dogs that are used to swimming in ponds might not be able to lift themselves out of a pool when they tire.