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Germs In Pools Versus Natural Bodies of Water, Which is Worse?

Which has more germs, a natural body of water or a swimming pool? Experts say there are more germs in a natural body of water than in a pool.

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Natural Swimming Versus Pools, Which Has More Germs?

When it comes to swimming outdoors most people aren’t thinking about germs. After all, going for a swim in the local lake or river has gained tremendous popularity in recent years. For many, the allure of swimming outdoors provides the opportunity to bask in the sunshine, breathe in fresh air, and immerse oneself in the tranquil surroundings of the great outdoors. Aside from the locale, swimming outdoors also offers stress relief, the release of endorphins, calorie burning, and muscle exercise.

However, along with the joys of swimming in natural waters come inherent dangers. Unlike swimming pools, where conditions are carefully controlled, outdoor bodies of water pose unique risks. Swimmers are more vulnerable to tides, currents, and swells, which can be unpredictable and powerful. Additionally, the water may harbor hidden perils in the form of harmful bacteria and bugs. In certain areas, untreated sewage finds its way into rivers, lakes, and seas, making it challenging to find a safe spot for a refreshing dip.

One of the significant differences between swimming in a pool and swimming in natural waters is the level of water monitoring. Pools undergo regular testing and treatment to maintain cleanliness, whereas the composition of outdoor waters is constantly changing. Chemicals can leach into natural waters from nearby farms or industrial areas, and animals may defecate in the water, further increasing the risk of contamination. Moreover, the presence of toxic agents may not be readily apparent, and there might be no signposts warning of local dangers. When in doubt about the chemical safety of outdoor waters, it is better to err on the side of caution and avoid entering them. Trusting one’s instincts is crucial— if the water appears or smells off, it is wise to steer clear.

Another hazard specific to swimming in natural bodies of water is the presence of blue-green algae. This type of bacteria is naturally found in lake ecosystems, and during warm summers, it tends to multiply rapidly, forming a powdery green scum, known as a bloom, on the water’s surface. Unfortunately, these blooms can release toxins harmful to humans and occasionally fatal to pets. Swimmers who come into contact with or swallow water containing toxin-releasing algal blooms may experience skin rashes, eye irritation, severe gastrointestinal problems, fever, and muscle and joint pain.

Which Has More Germs a Natural Body of Water or a Swimming Pool?

In terms of swimming and germs, bacteria and viruses are the biggest risks. It’s a fact that swimming in natural waters is associated with a higher likelihood of contracting illnesses such as diarrhea. Sewage contamination is a common culprit, and swallowing contaminated water exposes swimmers to bacteria and viruses such as E. coli, Norovirus, and Shigella. Germs that cause other RWI’s include Naegleria fowleri and Pseudomonas. Additionally, rodents living in sewers near freshwater rivers or canals can carry the bacterial pathogen Leptospira, which causes Leptospirosis or Weil’s disease. The infection can occur when a swimmer ingests soil or water containing urine from infected animals or when it enters their eyes or a cut. Leptospirosis can lead to liver and kidney damage and, if left untreated, can be fatal. Swimmers can develop flu-like or jaundice symptoms within two weeks of swimming in a river, lake, pond, or other natural body of water.

Although safer than a natural body of water, there are still plenty of germs in pools.
Although safer than a natural body of water, there are still plenty of germs in pools.

Pools Are Far From Germ-Proof

This is not to say that swimming pools are necessarily germ-proof, quite the contrary, far from it. The primary cause of RWI’s (recreational water illness) in both treated and untreated swimming locations shared a common source: fecal matter, particularly human feces. Most germs responsible for these infections are transmitted through the fecal-oral route. In this process, an infected person swims in the water, and the pathogens are released from their anus into the water. Subsequently, another individual may swallow the contaminated water or inhale aerosolized droplets containing the pathogens.

For example, approximately 80% of illnesses contracted from treated water were attributed to Cryptosporidium, a parasite that resides in animal intestines and spreads by being excreted through feces into water sources. Although the illnesses resulting from untreated water were more diverse, the primary culprits still originated from fecal matter. Norovirus, a highly contagious virus transmitted through vomit and feces, accounted for about 30 percent of all cases. Additionally, the most common bacterial infection, Shigella, spreads through diarrhea.

While chlorine can effectively control many other pathogens that cause illnesses in pools and spas, Cryptosporidium can survive in chlorinated water for an extended period, surpassing a week. This prolonged survival allows the parasite to spread easily among swimmers in the contaminated water and subsequently infect others who come into contact with that water. Such scenarios contribute to the occurrence of outbreaks and the rapid transmission of the parasite.

Considering all these factors, it becomes evident that, despite occasional instances of urine and feces in pools, managed swimming pools still provide a much safer environment for swimming. When it comes to germs, pools with proper maintenance, including chlorine disinfection and pH regulation, are significantly less likely to harbor infectious microorganisms. Furthermore, the presence of trained lifeguards and safety equipment in pools reduces the risks of injuries and drowning incidents.

While swimming in natural bodies of water offers a captivating and immersive experience, it comes with inherent risks due to the presence of potentially harmful microbes and unpredictable water conditions. Swimming pools, on the other hand, provide a controlled and sanitized environment for recreational swimming. Therefore, when it comes to ensuring safety, managed swimming pools offer a more reliable option. They undergo regular monitoring and treatment, reducing the likelihood of waterborne illnesses and providing a safer space for swimmers. So, while the allure of swimming in a natural body of water is undeniable, it’s important to weigh the risks and take necessary precautions to ensure a pleasant and safe swimming experience.

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Pool News coverage brought to you by Pool Magazine's own Marcus Packer. Marcus Packer is a 20 year pool industry veteran pool builder and pool service technician. In addition to being a swimming pool professional, Marcus has been a writer and long time contributor for Newsweek Magazine's home improvement section and more recently for Florida Travel + Life. Have a story idea or tip you'd like to share with Pool Magazine? Email [email protected] your story idea.

Pool Builder

Historic Rain in Florida Takes Toll on Pool Job Sites

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Historic Rain in Florida Takes Toll on Pool Job Sites

BREVARD COUNTY, FL — For swimming pool builders along Florida’s Space Coast, Monday, November 2, was anything but business as usual. An extraordinary rainfall event inundated portions of Brevard County, flooding neighborhoods, closing roads and turning active swimming pool construction sites into muddy reservoirs.

According to The Washington Post, portions of Florida’s Space Coast received as much as 28 inches of rain in approximately 36 hours, equivalent to nearly half the region’s typical annual rainfall. The relentless downpours overwhelmed drainage systems, flooded residential neighborhoods and brought construction activity to a standstill.

In some of the hardest-hit communities, nearly two feet of rain fell as a slow-moving weather system repeatedly delivered heavy downpours across the region. The National Weather Service characterized rainfall in portions of southern Brevard County as a 1-in-1,000-year event, a statistical designation indicating a 0.1% probability of rainfall of that magnitude occurring in any given year.

By Tuesday, November 3, the storm had claimed at least two lives. Joshua Bennett, 34, was found dead in his truck in a flooded area of southeastern Palm Bay, while Archie Richards, 78, was discovered inside his Toyota Tacoma in a canal near his home in Malabar. Emergency crews rescued hundreds of people as rising water inundated residential neighborhoods and left vehicles stranded.

Preliminary rainfall reports showed 23.69 inches in Grant-Valkaria, 23.44 inches in Malabar and 19.75 inches in Palm Bay. The extraordinary rainfall overwhelmed drainage systems, flooded homes and brought construction activity to a standstill in affected neighborhoods.

For Jeff Jones, owner and builder at Spacefront Pool & Spa, the storm struck directly at the communities he serves. Several of his active construction projects were caught in the flooding.

From Active Construction Sites to Underwater Excavations

Before the storm, Jones’s crews had been progressing through the normal stages of swimming pool construction. Excavations had been completed, plumbing installed and, at some locations, steel reinforcement and forming were already underway.

“Today was one of those days that reminds you just how unpredictable the construction industry can be, especially here on Florida’s Space Coast,” Jones said. “Today we had multiple swimming pool construction sites flood, freshly excavated pools filling with water and surrounding soil washing back into the pools.”

For a pool builder, an open excavation represents considerably more than a hole in the ground. By the time plumbing, rebar, and forms are installed, crews have already invested substantial labor and materials into preparing the site for the next phase of construction.

Flooding at this stage can undo days of work and leave contractors facing costly repairs. But before Jones could begin assessing the damage, there were more immediate concerns.

A Builder’s First Priority: Safety

“Even with roads closed due to flooding, I made it out to our job sites to assess the situation and address immediate hazards,” Jones said. “One of my biggest concerns was the electrical equipment associated with our pumps.”

With floodwaters rising, he worked to disconnect electrical power safely and remove pumps where conditions allowed.

“Some of my pumps were a foot below water.”

The danger wasn’t limited to electrical equipment. Submerged excavations concealed steel reinforcement, unstable soil and other hazards that could pose serious risks to anyone attempting to recover materials or equipment.

Jones understood there was a point where the effort to protect a construction site just had to stop.

“You can rebuild a swimming pool. You can’t replace someone’s life.”

But the damage to his construction sites wasn’t the only thing weighing on Jones.

“What made this situation even more devastating was that some of our customers’ homes were flooding as well,” Jones said.

“As a business owner, your first instinct is to protect your work and your investment. But you quickly realize there’s a much bigger picture.”

The flooding had turned what began as a construction emergency into something far more personal, with Jones balancing the responsibility of protecting his business against the immediate needs of the families he serves.

Weeks of Recovery Ahead

With the immediate danger beginning to subside, Jones faces the difficult task of assessing what can be salvaged from his flooded construction sites.

The damage to an unfinished swimming pool can extend well beyond the water visible in an excavation. Heavy runoff carries soil, sand, and debris into the work area, potentially compromising excavation walls, displacing forms, and undermining surrounding ground. Plumbing and steel may also require inspection or repair before construction can resume.

Some projects may need little more than pumping and cleanup. Others could require extensive excavation repairs, re-forming and additional inspections. Saturated soil and elevated groundwater levels can further complicate recovery, making it necessary to evaluate site conditions before removing accumulated water.

“This is going to set us back weeks,” Jones said.

The setbacks come with additional labor costs, equipment expenses and the challenge of coordinating crews and subcontractors around work that must now be repeated. For a pool builder managing several projects at different stages of construction, those disruptions can ripple through the entire schedule.

Florida contractors are accustomed to dealing with unpredictable weather, but the magnitude of this event illustrates how even experienced builders can find themselves facing circumstances beyond their control.

Jones has spent years working in an industry where weather is an unavoidable part of the business. His experience has taught him the importance of job-site drainage, protecting equipment and preparing crews to respond when conditions improve. Yet even those precautions have their limits.

“Preparation is everything, but even the best preparation can’t prevent Florida from being Florida on a random Monday in November.”

For now, the work ahead involves assessing the damage, restoring affected construction sites, and getting projects moving again. The financial consequences have yet to be fully determined, but the delays are already a certainty.

As Jones put it, “Mother Nature doesn’t care about your construction schedule.”

Photographs courtesy of Jeff Jones, Spacefront Pool & Spa.

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Equipment Supplies

Pool Manager Charged Over Stolen Equipment Sold on eBay

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Pool Manager Charged Over Stolen Equipment Sold on Ebay

A former New Jersey pool company manager has been charged with theft after allegedly selling company equipment through an unauthorized eBay account and keeping more than $14,000 in proceeds, according to police allegations reported by Newport Dispatch.

Jessica Szurick, 42, of Clifton, was charged Oct. 27 with theft by unlawful taking following an investigation involving Preferred Pool Management Inc. in Fairfield. The company’s owner contacted police Aug. 27 to report the alleged unauthorized sales.

Investigators said industrial machinery and pool equipment had been sold through the account. Financial records obtained through court-authorized subpoenas allegedly showed approximately $14,253 from three transactions deposited into a bank account registered to Szurick rather than the business. The owner also reported unauthorized company credit card purchases, which were reviewed during the investigation.

According to Daily Voice, Szurick’s LinkedIn profile listed employment with Preferred Pool Management from May 2018 through July 2026, most recently as a senior regional manager. The profile described responsibility for 161 commercial aquatic facilities and approximately 315 seasonal employees.

Szurick was issued a complaint-summons and is scheduled to appear in Essex County Superior Court on Dec. 9. The charge remains an allegation, and she is presumed innocent unless proven guilty.

Tracking Equipment and Sales Proceeds

The available reporting does not explain the alleged motive or establish which safeguards Preferred Pool Management had in place. But the alleged transactions illustrate a vulnerability other pool companies can examine: equipment leaving the business without the corresponding revenue reaching its bank account.

Pool Magazine recently explored pool equipment theft and its costly consequences for homeowners. Inside a pool business, protecting those assets requires more than locks and cameras. Employees need access to equipment to do their jobs, and owners need records that account for what happens afterward.

The Cost of Earning That Money Back

For a pool company, an equipment loss can create expenses beyond the item itself. Depending on what disappears, the business may face an urgent replacement purchase, a delayed installation, another truck roll, or hours spent reconstructing records. The reporting does not establish whether those disruptions occurred in this case.

Even the direct loss can take considerable work to recover. At a hypothetical 10% profit margin, a company would need $100,000 in additional sales to generate $10,000 in profit—the amount needed to offset a $10,000 unrecovered loss. That follows OSHA’s cost-divided-by-profit-margin calculation.

The reported eBay proceeds do not establish Preferred Pool Management’s total financial loss. They put a dollar figure on the transactions investigators say they traced.

Pool equipment and supply inventory in a warehouse

Building Accountability Into the Business

For pool companies, the challenge is giving employees the access they need while maintaining oversight of valuable assets. Managers must be able to purchase equipment, move it between locations, and keep jobs moving. Those responsibilities should come with records another person can review.

The Insurance Information Institute recommends businesses “implement tight accounting controls that include frequent audits and take steps to ensure employees are aware of these practices.” Its employee theft prevention guidance also encourages businesses to provide a way for employees to report concerns without fear of reprisal.

For a pool business, that oversight can start with equipment sales. Document the item, require authorization for its release, and have someone other than the person arranging the transaction verify that payment reached the company’s account. Equipment marked discarded or damaged should also have a documented explanation.

Broader occupational-fraud research supports the value of internal oversight. “Organizations with effective anti-fraud controls in place consistently experienced lower losses and faster fraud detection,” the Association of Certified Fraud Examiners states in its 2026 occupational fraud findings.

As a pool company adds crews, vehicles, and service locations, an owner’s ability to personally track every asset becomes harder to sustain. Equipment may move among a warehouse, several trucks, and multiple job sites before anyone considers selling or disposing of it. The records and review process need to grow with that operation.

The Fairfield allegations remain for the courts to resolve. For other owners, they present a reason to examine their own process now. Delegating responsibility keeps the business moving; independent review gives the owner confidence that equipment releases are authorized and sale proceeds reach the company. Establishing those checks during everyday operations is far easier than reconstructing the trail after something goes missing

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Pool News

Scott Jones Named CEO of Landmark Aquatic

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Scott Jones wearing black glasses and a navy suit outdoors.

Landmark Aquatic announced the appointment of Scott Jones as Chief Executive Officer, effective November 1, 2026. Jones currently serves as Chief Operating Officer. J. Ryan Casserly, founder of the Landmark platform and its current CEO, will transition to Executive Chairman, where he will focus on mergers and acquisitions and continue working closely with the leadership team on Landmark’s long-term vision and strategic direction.

As Chief Operating Officer, Jones has worked across Landmark to strengthen operations, improve alignment, and advance initiatives that position the company for its next phase of growth. His appointment reflects the impact he has had on the organization and his commitment to investing in the people, processes, and capabilities that set Landmark apart in the marketplace.

“Over the past two years, Scott and I have worked closely together to strengthen the business and prepare Landmark for the future,” said Casserly. “He has developed a deep understanding of our industry, our people, and what makes this company special. Scott brings the leadership, operational perspective, and unwavering commitment to our mission that this next chapter requires. I have full confidence in his ability to keep advancing the business while staying true to what matters most — our people and the customers we serve.”

“I’m grateful for the opportunity to lead Landmark Aquatic and excited about what lies ahead for our company and the commercial aquatics industry,” said Jones. “We have a tremendous team, a strong foundation, and an opportunity to keep raising the bar for our industry. Our mission goes beyond the projects we deliver. It’s about creating opportunities for our employees and helping customers realize the full value of their aquatic facilities throughout their lifecycle. I look forward to building on our progress, working alongside our teams, and continuing to move Landmark forward.”

Landmark remains focused on developing its people, expanding its capabilities, and advancing the commercial aquatics industry through continuous improvement and a long-term commitment to the customers and communities it serves.

About Landmark Aquatic

Since 1967, Landmark Aquatic has helped communities and organizations bring complex aquatic facilities to life and keep them performing. Today, Landmark is the nation’s largest integrated commercial aquatics platform, providing design, construction, renovation, restoration, and maintenance services nationwide. Its construction-led expertise and long-term service capabilities give customers one trusted partner across every stage of a facility’s lifecycle. For the life of your pool. Learn more at www.landmarkaquatic.com.

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