Pool News
Stray Voltage in Swimming Pools Can Be Dangerous
For those fortunate enough to have a pool at their residence, swimming can be a great way to to unwind during the summer months. While swimming pools are an excellent way to relax, stray voltage in the pool can pose a significant threat. Stray voltage typically occurs through improperly grounded pool equipment.
What is Stray Voltage?
Before you can figure out how to stop stray voltages from happening, you need to know what it is. In most layman of terms, stray voltage exists when unconstrained currents leak from an electrical source. When swimmers or pets come in contact, stray voltage can even prove fatal.
Most first shocks from stray voltages are less than 10 volts, which is not very strong. When a person gets into the pool or touches a handrail or ladder that is connected to the pool, they may feel a small tingling or stinging sensation. Children are more sensitive to sensory input than adults are, so they often notice these small shocks before adults do.
A faulty transformer or electrical cable can often be the source of stray voltage in the swimming pool. This leaking current then travels through the ground in an attempt to deplete its energy. Just like a lightning strike, it uses the Earth’s ground as a pathway.
In reality, these voltages can be found under the soil of most homes. Your family could be in danger even if your home’s electrical system meets all applicable standards.
Common Sources:
- Damaged or melted neutral or ground wiring systems
- Defective lighting systems
- Damaged or exposed buried electrical cables
- Faulty “drops” from overhead power cables (where electricity is accessed from the main line)
- Electric panel issues
- Damaged pads underneath transformers can also conduct stray voltage.
- A variety of other sources
One of the most likely places to find stray voltage is in a swimming pool, simply because electrical current has much less resistant transit in the presence of water. When electricity flows from an electrical outlet and into another conductive item, like a metal water pipe, metal support beam, or concrete slab, this is known as “stray voltage.”
Until the electric supply is cut or the power source of the energy is removed, the electricity will remain in the water. Having poor electrical wiring, inadequate GFCI protection for outlets and circuits, and electrical cords and appliances coming into contact with water are the three most common causes of electrocution in swimming pools.
Identifying The Source Of The Problem
Electrocution in a swimming pool is very rare, but it is still a risk for anyone who owns a pool. Consequently, it’s important to know what to look for if there’s an electric current in the pool and how to stop it.
It used to be common practice to embed metal rebar into concrete floors (for concrete stability). Metal was the preferred conductor of electricity, rather than concrete, and stray voltage was not a major worry back in those days.
Stray current became a problem as the concrete industry began incorporating additional components into the mix and rebar was no longer required on every build. As a result, contact voltage has been linked to far too many incidences of injury and even death.
There is no visible sign or way to tell if the water in the swimming pool contains enough electricity to kill. Most of the time, people don’t feel electrical current right away when they get into the pool. This is a lesson New Jersey homeowner James Volk learned first-hand.
A Brick family discovered an electrical current running through their yard and pool. Now they are seeking help to shut it down. https://t.co/p5VoT9UfWe
— Asbury Park Press (@AsburyParkPress) September 7, 2022
“My wife, my mother-in-law, and my daughter were in the pool, and my wife went to go clean out the skimmer basket,” Volk told news sources. “When she stuck her hand in, she got shocked so bad that she felt it down to her feet, like tingling, numbness.”
The entire family has learned to tread lightly around the pool area as some have experienced these shocks outside of the pool. The family is currently investigating what is causing the issue and have closed their pool until they can determine the cause.
Protecting Swimming Pools From Stray Voltage
Protecting swimmers in the pool from stray voltage should be of top priority. With proper wiring, the risk of stray voltage can be greatly mitigated. Wiring and grounding will also function better. Consequently, consideration of how to safeguard against stray current starts during construction of the pool itself.
Stray voltage can occur suddenly if problems develop on the grounded or neutral side of an electrical system. Equipment which may have worked perfectly for years can malfunction if something out of the ordinary occurs.
Every pool with underwater lighting, a pump to move the water, or electric heating has a chance that the water could become electrically charged if there is an electrical fault. Most experts would advise to add equipotential bonding grids under the pool and deck in order to provide stray voltage an alternative pathway.
A pool should be electrically safe to swim in if it has been constructed right and has an equipotential deck surface with all of its components properly bonded.
If you do suspect your pool has stray voltage, a device known as a “shock alert” can be used to check for electricity in the pool water. If there is electricity in the water, the shock alert will let you know by beeping and flashing red. This would indicate that there is electricity in the water and swimmers should stay out. If the device flashes green, on the other hand, it would indicate that there is no voltage and the pool is safe to swim in.
What To Do If You Encounter Stray Voltage in the Pool
The best advice is to avoid contact with any stray voltages at all costs. Seek the assistance of a licensed electrician as soon as possible if you think you have this issue close to your pool or spa. Do not allow anyone, including humans and pets, near the pool until the issue has been resolved.
The electrical code has seen in significant evolution during the past recent decades. It’s possible that the bonds in many older swimming pools were nefver properly installed or constructed to begin with. A wiring fault or issue with your electrical provider are also additional possibilities. There are a number of potential causes of stray voltages, so it’s best to have a qualified electrical contractor check it out and fix it. The majority of problems have very simple solutions.
Pool News
French Diver Makes Splash After Flop At Opening of Olympic Pool
French Olympic diver, Alexis Jandard, created a memorable moment at the grand opening of Paris’s new Olympic pool, though not quite in the manner he had envisioned.
A startling video captured during the inauguration of the state-of-the-art Paris Aquatics Center on Thursday showcased the 26-year-old Olympian’s unfortunate landing on his right foot while gearing up to dive alongside two fellow athletes. Adorned in a Speedo reflecting the hues of the French flag, Jandard’s discomforting descent saw him landing on his back, ricocheting off the nearly 10-foot-high dive board, and somersaulting into the pool in a rather ungraceful manner.
The incident unfolded in front of a sizable crowd of onlookers, including French President Emmanuel Macron and various dignitaries. Jandard later displayed his scraped back on his Instagram account, maintaining a light-hearted approach to his embarrassing mishap by quipping, “For your information, my back is fine, but my ego…”
Sharing a photo of his reddened back, courtesy of the encounter with the diving board, on Instagram Stories, Jandard assured followers of his well-being. Speaking to RMC Sport, he recounted the unexpected turn of events, stating, “I’m fine. I didn’t hurt myself; unfortunately, these things happen. It happened at a time when I wasn’t expecting it at all.”
Reflecting on the incident, Jandard humorously noted, “I’ve broken boards before, but the board had never broken me before. Now it has.” Despite the hiccup, he maintained an optimistic outlook, remarking, “I would have preferred this ceremony to have gone well from A to Z. There was that little hitch. If it made people smile a little, so much the better.”
Explaining the mishap, Jandard clarified that his leg gave way upon landing but denied any slippage, emphasizing, “It’s a non-slip [board], and what’s more, the board was new, beautiful, and I think there’s still [some of] my back on the board there.”
With a silver and bronze under his belt at the 2022 and 2023 World Aquatics Championships, respectively, Jandard took the incident in stride, admitting, “It’s a shame, but it’s funny. When you take a step back, it’s funny.”
Looking ahead to the 2024 Paris Games this summer, where he is set to compete, Jandard acknowledged the inevitability of such occurrences in his sport, jesting, “These things happen,” while playfully lamenting, “It had to happen in front of the president and the whole of France. I think we chose the right moment.”
Despite being inundated with supportive messages and playful jabs, Jandard maintained a good-natured stance, urging his followers on Instagram, “Enjoy yourselves, make fun of me. I seriously deserve it!”
Pool News
Earthquake in Taiwan Causes Waterfall From Rooftop Pool
A massive earthquake in Taiwan transforms a rooftop pool into a waterfall. View viral footage.
In a harrowing turn of events, Taiwan was struck by a powerful 7.4 magnitude earthquake, leaving devastation in its wake. The quake, the strongest to hit the island in 25 years, shook the east coast of Taiwan, particularly affecting the city of Hualien and its surrounding areas. With a depth of 34.8 kilometers, the epicenter of the earthquake was located 18 kilometers south of Hualien, according to the US Geological Survey.
As rescue efforts are underway to free those trapped under rubble and debris, the toll of the disaster continues to rise. At least nine individuals have lost their lives, while over 900 others have sustained injuries. The aftermath of the earthquake has left over 100 buildings damaged, with reports of landslides and collapsed structures adding to the chaos.
The force of the quake was so immense that it caused a surreal sight—a rooftop swimming pool overflowing and cascading down the side of a building, creating an impromptu waterfall. Footage captured during the earthquake also shows the sheer force as a man inside a pool struggles to maintain balance, the water swaying violently from side to side.
The region of Hualien County, with a population of approximately 300,000, faces immense challenges in assessing the full extent of the damage. Many inhabitants reside in remote coastal or mountain communities, making it difficult for rescue teams to reach them promptly. The precarious situation is exacerbated by the expectation of aftershocks, with 29 aftershocks greater than a magnitude of 4.0 already recorded near the epicenter.
Compounding the crisis are reports of miners trapped in two mines in Hualien, adding urgency to the rescue operations. Furthermore, over 91,000 households are grappling with power cuts, amplifying the difficulties faced by residents in the aftermath of the disaster.
Despite the widespread destruction, medical facilities in Taiwan’s capital, Taipei City, are functioning, albeit damaged. The Municipal Government has confirmed that hospitals are operating normally, providing critical care to the injured.
The international community has responded swiftly to the catastrophe, with the Biden administration monitoring the situation closely and expressing readiness to offer assistance. In the face of adversity, Taiwan is rallying its resources and resilience, demonstrating solidarity and resolve in confronting this natural disaster.
As the dust settles and the extent of the damage becomes clearer, questions arise about the effectiveness of early warning detection systems in mitigating the impact of natural disasters. Despite Taiwan’s investment in advanced seismic technology, including early warning systems designed to provide crucial seconds of alert before an earthquake strikes, many residents were caught off guard by the sudden and violent tremors. Reports indicate that the early warning detection system, while operational, did not reach a significant portion of the population in time to take preventive action
Pool News
Patent Pending Apple Watch SOS Feature Could Prevent Drownings
A forthcoming feature potentially destined for the Apple Watch, as detailed in a recent patent application, could serve as a lifesaver for swimmers at risk of drowning.
Outlined in the patent is a capability for the Watch to identify “irregular behavior” and automatically trigger a distress call for assistance.
Apple underscores the alarming statistics surrounding drowning, particularly its prevalence among children, as a leading cause of accidental fatalities.
In the United States alone, drowning claims the lives of over 3,500 individuals annually, ranking as the fifth most common form of accidental death. Tragically, a significant portion of these victims are children.
Emphasizing the critical importance of swift intervention during water emergencies, Apple highlights the dire consequences of prolonged submersion without resuscitation, which can result in brain damage and ultimately, drowning.
A Growing Need For Cost-Effective Wearable Solutions
While acknowledging existing underwater camera systems in some swimming pools aimed at detecting distressed swimmers and alerting lifeguards, Apple notes their costliness and unreliability.
Consequently, there’s a pressing need for a simpler, more cost-effective drowning prevention solution suitable for all types of water bodies, including public and private pools, as well as natural settings like lakes and ponds where installing underwater cameras is impractical.
The patent proposes leveraging wearable devices such as the Apple Watch for broader applicability, increased reliability, and the ability to detect various types of emergencies.
Alerting When Swimmers Are In Distress
For instance, if the Watch detects a wearer who is not proficient in swimming entering deeper water, it can promptly dispatch an alert instead of waiting for signs of distress.
These alerts can be transmitted to nearby devices, including those of friends and family, and seamlessly integrate with existing drowning detection and alarm systems to ensure lifeguards are promptly notified.
Apple Watches already boast capabilities to detect and respond to falls, vehicle accidents, and cardiac irregularities. Heartwarming testimonials featured in Apple’s “Dear Apple” video series show individuals whose lives were saved by these functionalities.
As with many patents from Apple, it’s important to note that not all concepts may materialize into actual products. Nonetheless, this innovation stands as a promising addition for potential integration into future watchOS updates.
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