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Cooling Tower Basin Sweeping Offers Better Legionnaires' Prevention Than Periodic Cleaning

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The recent outbreak o
f Legionnaire's Disease in New York City has proven once again that an ounce of prevention is worth a pound of cure. Legionella bacteria growing in cooling towers was the apparent cause of this outbreak. Once the disease was diagnosed, disinfection and testing immediately became the priority. For prevention, a cooling tower basin sweeping system, along with an effective water treatment program is an effective combination in reducing the risk of Legionella growth.

Rather than manually cleaning the tower basin at regular intervals, or (worse) when problems arise, basin sweeping filtration provides continuous removal of the particulates that provide a habitat to allow Legionella and other bacteria to grow. Cleaner cooling system water also makes water treatment more efficient, requiring less chemical use than a system without filtration. The American Society of Heating and Refrigerating Engineers (ASHRAE) has included cooling tower basin sweeping and centrifugal separators as possible aids in the prevention of Legionella.

ASHRAE Prevention Standards
Guideline 12 in the ASHRAE Handbook points out that..."Keeping the system clean reduces nutrients available for Legionella growth...(and) centrifugal gravity-type separators and bag-type filters can be used to assist in removal of debris.." Fighting Legionella is just one of the advantages of using a centrifugal separator to clean a cooling tower water system.

The newly published ASHRAE Standard 188 (Risk Management for Legionella) requires building owners to document a plan for regular inspections and maintenance of cooling towers. Section 7.2.3 b clearly states that this plan "shall include requirements and schedule for basin or remote sump cleaning." The three largest cooling manufacturers (BAC, Marley, and Evapco) all offer pre-installed basin sweeping piping configurations for their towers for ease of implementation.

The ASHRAE White Paper titled "Benefits of Cooling Water Filtration explains even more benefits of Cooling Water filtration.

Prevention Case Study
Saint John's Hospital in Indiana has heard all the horror stories. Concerned with both the risk of Legionnaires' Disease and employee injury common to manually-cleaning cooling towers, the staff at Saint John's installed continuous filtration cleaning on their cooling tower basins. The LAKOS system also made their water treatment more effective, requiring much less chemical use than before the filtration was installed.  Says their mechanical team leader, "LAKOS basin sweeping is working extremely well. I can't imagine not having it." Download the entire Case Study.

Visit the Legionella Prevention website for more information about how cooling tower basin sweeping can reduce the risk of Legionella and make water treatment more effective.

Retrofit Cooling Systems Operate Efficiently Thanks To Filtration


Energy-saving technology is constantly evolving and improving to be more efficient than ever before. Every year researchers, engineers, and scientists conduct research studies and products to improve energy efficiency in our hotels, schools, hospitals, office buildings, and more.

Cooling tower filtration in large buildings like those in New York City is essential to energy and water savingsA recent 2013 energy report this year found that some new energy efficient buildings were actually less energy efficient than older buildings that were retrofitted with the latest energy saving equipment.

According to these reports, newer buildings in Manhattan, like 7 World Facilities like the world famous Empire State Building retrofit their equipment to energy saving technologyTrade Center, received a lower energy efficiency score than much older buildings like the Empire State Building, which has been retrofitted in recent years. The historic Empire State building has already cut energy use by 20%, and will save the owners an estimated $4.4 million a year!

Updating older buildings with energy efficient equipment is a proven way to conserve energy resources. In fact, an NBI study found that retrofitting older buildings with energy saving equipment "resulted in energy use 50% less than the national average." These results show that new, energy efficient equipment installed in new or old buildings plays a vital role in improving energy efficiency around the world.

HVAC Efficiency Is A Global Concern

Retrofit energy solutions aren’t exclusive to the United States. Countries around the world are taking advantage of upgrading older facilities to meet modern day energy standards. In China, the government is implementing a five year plan to retrofit a remarkable 4 million square meters of building space. That’s equivalent to 16 Empire State Buildings!

Tucked away in the lush foliage of the Costa Rican Peninsula Papagayo coastline, a luxury resort had a unique problem. In addition to maintaining energy and water savings, they had to deal with beach sand and debris entering their cooling system. This debris was entering their cooling tower, preventing it from operating at optimum efficiency. The ideal tropical location wasn’t so ideal for hotel’s the cooling tower. They found their solution in a LAKOS TowerClean Separator. The patented HydroBooster water nozzles easily swept the basin debris into the separator where it was efficiently removed from the system with zero water loss or maintenance, all while using minimal amounts of energy.


New eSolutions Products Designed for Energy Efficiency

One big way these large buildings can improve their energy efficiency is through water filtration. A filter or separator can clean and protect cooling tower basins, heat exchangers, spray nozzles, and chiller tubes from unwanted solids build up and fouling. Centrifugal separators have been proven to reduce maintenance costs, energy use, and water loss, all while effectively keeping cooling systems clean and protected.

One company is leading the charge in energy efficient filtration for these large buildings. Just this year, LAKOS Separators and Filtration Solutions launched their third generation of unique filtration solutions: a line of eSolution separators and filters that offer finer filtration using less energy. This new product line has been specially engineered with strict energy compliance guidelines in mind.

On a single pass with the new eHTX Separator, 98% of particulates down to 44 microns can be removed from a cooling system, all while using minimal amounts of energy, water, or maintenance. These separators use patented centrifugal technology to easily remove unwanted solids that can hinder system efficiency.


To learn more about how these new eSolutions products can reduce energy consumption in new or retrofit installations, visit


Hurricane Sandy Aftermath Shows Need For Filtration


East coast USA residents are still reeling from the intense damage caused by Hurricane Sandy; the violent storm that hit more than two weeks ago and left its devastating mark on the United States. As states like New York and New Jersey still recover from Sandy’s fury, water safety and useability has become a top priority.

LAKOS Filtration can help with dewatering situationsPumps and filtration systems come together in a key partnership during times of crisis to provide unique recovery solutions. Separators and filtration systems are used to remove solids and debris to help protect pumps and clean contaminated storm waters. Top officials and even President Obama have said that water filtration is a vital part of the recovery process.

“Our first priority is water filtration plants and some other critical infrastructure in the state,” said President Obama at a press conference in New Jersey, “And so we’re working with Governor Christie’s office and local officials to identify what are those critical infrastructure, and how we get what’s needed as quickly as possible.”

Filtration Protects Pumps and Cleans Well Water
Water safety is a concern for both municipal plants and residential well users alike during the post-storm clean up. Staff at some water treatment plants expressed concern about increased turbidity from agriculture land run-off during the storm.

Additionally, residential well owners affected by the storm are being urged by the EPA to check their water supplies for any contamination or possible pump damage:

“Swiftly moving flood water can carry large debris that could loosen well hardware, dislodge well construction materials or distort the casing. Coarse sediment in the flood waters could erode pump components. If the well is not tightly capped, sediment and flood water could enter the well and contaminate it.”

These contaminated flood waters, debris, and other unwanted solids can wreak havoc on a well system and potentially cause serious health problems as well as damage to pump impellers. Pumps are playing key roles during the Hurricane Sandy recovery, not just in wells, but in some unlikely places.

Pumps and Filtration Used To Restore New York Subways
City crews worked around the clock to pump hundreds of millions of gallons of water out of New York’s subway system. All but one tunnel of the famous transit system flooded during the storm, and these pumps are moving 16,500 gallons of water per minute to restore them. The spinning impellers inside the pumps push water up from the flooded subway and out through a discharge hose.

Before storm waters can be sent through the pumps, however, it has to go through a filtration process in order to protect the pump equipment. Filtration is key for extending pump life, protecting impellers, and enhancing pump performance in every application from city subways to rural wells.

LEARN MORE About Filtration For Dewatering and Source Water Problems
From pre-filtration screen filters to submersible pump separators and municipal filtration, there’s a filtration solution for almost any problem. When it comes to recovering from major natural disasters like Hurricane Sandy, flood water filtration plays a key role in recovery efforts.

Team Rubicon is a group of military veterans and medical professionals assisting in Hurricane Sandy's recovery, aiding with post disaster damage assessments, debris management, and flood recovery operations. CLICK HERE to donate to their relief efforts.

London Athletes and Spectators Can Thank Filtration For Water Safety


The 2012 Olympics are officially underway, and as tens of thousands of athletes and spectators descend on London, health concerns and safety are top priorities.

British health officials have evaluated  public health concerns in preparation for the Summer Games, including possible outbreaks of the potentially lethal Legionnaire’s Disease. They are taking every precaution to prevent the growth and spread of the dangerous disease, monitoring the Olympic venues and arenas for potential signs of the bacteria. After recent outbreaks of the disease in the UK before the games began, officials know that preventative measures are key to protecting athletes, visitors, and citizens during the event's 16 day run.

Photo by Megan PatinoAirports, hotels, hospitals, arenas, and other large buildings in London are of special concern. The best way for these facilities to proactively reduce the risk of legionella exposure to their guests is to install proper cooling tower filtration. Heathrow Airport in London has done exactly that, installing a LAKOS Filtration system several years ago.

On a normal day at Heathrow, over 190,000 passengers either arrive or depart out of the UK’s busiest airport. For the Olympics, Heathrow recruited 1,000 additional volunteers to assist with the increased traffic, and have upgraded the baggage system to handle over 200,000 pieces of luggage, including everything from canoes to pole vaults. Together with the LAKOS Filtration system and other facility improvements, airport officials are confident they can meet the demands both during and after the Games.

Cooling Tower Filtration: An Effective Solution for Reducing Legionella Risk

A LAKOS Filtration System for cooling towers is an excellent solution to keep the cooling tower basin clean and prevent the environment in which legionella can flourish. Prevention is the key, as described by ASHRAE in these words: “Keeping the system clean reduces nutrients available for Legionella growth... centrifugal gravity type separators... can be used to assist the removal of debris.”

One way in which a LAKOS Filtration system accomplishes this is through the placement of high pressure nozzles at strategic locations in the cooling town basin, where they prevent dirt, grit, and other solids from settling in one location. These "HydroBooster" nozzles play a key role in the cleaning process, and utilize a patented vortex technology to push basin solids towards the separator so it can be separated from the water and removed from the system.

Download the FREE HydroBooster Information Sheet TODAY !

Want to learn more? DOWNLOAD the New HydroBooster Technical Sheet. The data sheet includes detailed sample configurations with HydroBooster layouts. Or visit the LAKOS Cooling Tower Filtration page .

iPAD3 and $500 Are Top Prizes in LAKOS 2012 Photo and Story Contest


Last year’s  “Where in the World is a LAKOS Solution?” photo contest was a huge success. People from all over the world submitted installation photos of their LAKOS filters and separators. That’s why LAKOS is bringing back the popular contest for 2012.

photocontest2012Revamped with even more prizes and chances to win, the
“What’s Your LAKOS Story? contest is again asking you to submit your stories and photos of LAKOS products wherever they are installed. With a new focus on the entry description and less on just the photo itself, you don’t have to be a professional photographer to win - the more detailed and descriptive your entry is, the better your chances to win! And don't forget how easy it is to shoot a quick video with your smartphone !

More Prizes Than Ever!
Any LAKOS filtration installation is eligible. From decades old to brand new, irrigation to comfort cooling, residential to industrial - as long as there’s a LAKOS story, it can be entered!

Each quarter will have:

  • A Grand Prize. The grand prize winner will have the choice between either a $500 Amazon gift card or a new Apple iPad (commonly referred to as the iPad3).
  • Second and Third place finalists. Each will be awarded $50 Amazon gift cards.

2011photowinnersLAKOS judges will base their choices on the details and uniqueness of the stories, as well as the quality of the photos included. Each quarter the winners will be announced on our website, as well as the LAKOS Facebook, Twitter, Flickr, and Google+ accounts.

Enter The Contest Today!
So What’s Your LAKOS Story? Click here to enter today! Simply fill out the form and attach your photo or short video. At the end of each of the remaining quarters in 2012 (ending in June, September, and December) the judges will vote and announce the winners! It could be YOU, and you will have your choice of a new iPAD or $500 worth of Amazon merchandise, including products ranging from expresso machines to wine racks to netbooks to fishing and hunting gear  !

Fans at the Big Game Will Stay Warm Thanks To District Energy Management


At the end of each football season, millions of people around the world gather in front of their television sets to watch the biggest sporting event in the United States -- the Super Bowl. This Sunday’s Big Game at Lucas Oil Stadium in Indianapolis appears as if it will be no exception to this trend, as media buzz builds excitement until the time for the opening kickoff has arrived. The game will pit conference champions against each other as the New England Patriots face off against the New York Giants. But even before those two teams take the field in the heat of battle, another huge challenge will be faced by a 3rd team -- the team of highly talented professionals responsible for keeping the air and water temperatures comfortable throughout the game -- for the players as well as the estimated Lucas Oil Stadium crowd of 63,000 screaming fans.

Fan comfort at Lucas Stadium courtesy of LAKOSCitizens Thermal The Champions Before The Game Begins
The team behind the scenes will use state-of-the-art district energy techniques and equipment to ensure that heating and cooling systems inside the stadium operate without any problems and at maximum efficiency. District management experts Citizens Thermal provide steam heat and chilled water for cooling to more than 250 commercial buildings in the downtown Indianapolis area, including Lucas Oil Stadium -- the home of the Indianapolis Colts and Super Bowl 2012.

Citizens Thermal has relied on LAKOS Filtration Solutions for over a decade to remove unwanted solids from chilled water production. Keeping the chillers clean is essential for maintaining efficiency. Without proper filtration, district energy plants are forced to work harder to maintain proper temperatures, wasting time, energy, and water. LAKOS keeps the chillers running at their highest efficiency, therefore helping to keep both teams and fans at the Super Bowl comfortable, and the stadium equipment running smoothly.

Download the FREE District Energy Case Study and Read More Details
Citizens Thermal are experts at the techniques of cooling tower filtration and district energy management, and opposing teams should study their playbook. Downtown Indiananpolis is a shining example of their expertise, and the Citizens Thermal Case Study describes their success there in some details. Color photographs from the Indianapolis installations are included. Download the FREE District Energy Case Study today, and read how these champions in their field play their game, and make winners of all their customers.

And if you are in the Virgina area next week, stop by the LAKOS demontration (Table 40) at the International District Energy Association’s Annual Campus Energy Conference taking place in Arlington, VA from February 6 - 9.


EPA Champions Water Quality By Example And Through New Software Tool


The U.S. Environmental Protection Agency (EPA) is charged with protecting the environment, and utilizes public awareness and education as two methods to achieve this goal. The organization has just released a new software tool that provides important information about pollutants that are released into local waterways. It is called the Discharge Monitoring Report (DMR) Pollutant Loading Tool, and it brings together millions of records and allows for easy searching and mapping of water pollution by local area, watershed, company, industry sector, and pollutant. Americans can use this new tool to protect their health and the health of their communities.

Environmental and Energy-Conscious Movements Around The World
The Richborough Cooling Towers have dominated the Kent skyline east of London since the 1950’s. The massive hourglass shaped towers are a regional landmark, piercing the kentcoolingtowershorizon (see photo), and serving as a constant reminder of the area’s rich, industrial traditions. However, in the coming months, the famous towers that once cooled coal and oil burning power stations will be
torn down to make room for a “green” energy park.

Traditional methods of cooling need be updated in order to stay competitive as new green technologies continue to grow. In both new constructions and older ones, proper filtration is an excellent way to increase the efficiency of cooling tower systems. Not only does filtration keep cooling towers operating in the “greenest” way possible, they also save energy, water, and money.

Environmental Agency Saves Water and Energy With Filtration On Their Cooling Tower
Perhaps no organizations are more concerned with keeping their operations environmentally friendly than the government agencies which oversee compliance with environmental regulations. One of the largest of these agencies recently faced escalating costs for cooling tower operations at a laboratory in Texas. Inefficiencies due to dirt and particulate accumulation in the cooling tower basin were causing major problems. They wanted a solution that was effective but also friendly to the environment.

They decided to install an automated cooling tower basin cleaning system, and the results have been overwhelmingly positive.

Download the FREE Case Study Today!
Download the full case study with all the details and color photos of this green installation. See how proper filtration can turn your HVAC nightmare into a water, energy, and money saving system.

Fall Quarter Winners in LAKOS Filtration Photo Contest


A photograph of a LAKOS PPS Pump Protection Separator being installed for the City of Rochelle, IL Water Utility is the latest Grand Prize Winner in our “Where in the World is a LAKOS Solution?” Photo Contest. The winning Ipad Winner for Q3photographer -- Dick Milaeger -- took the winning photo and won a new Ipad2. Mr. Milaeger not only took a great photograph, but also explained in detail how the LAKOS PPS was being installed to prevent sandstone pitting and other damage to the high flow submersible pump used on one of the city's main water wells.

Photo Program Guidelines

Monthly finalists are selected from all submissions that month, based upon the (a) quality of the photograph and (b) details of the installation provided by the photographer. The monthly finalists compete against each other in the quarterly contest for a chance to win our Grand Prize, an iPad2. The contenders for this Grand Prize covered entries received from July through September. Photo entries ranged from a LAKOS HTH Separators installation in Abu Dhabi, to an ILB Separator installed at a resort in the Bahamas, to a JPX Separator system in Boise, Idaho.

Runner Ups In LAKOS Photo ContestFinishing 2nd and 3rd in the contest were two photographs of different LAKOS residential filtration products, including:

  • 2nd Place: Photographer Tim Regello with his picture of a SandMaster Plus installed near a home in San Marcos, CA. It is used to filter irrigation water from a residential irrigation well.

  • 3rd Place: Photographer Mike Wiesenberg with his photo of a residential TwistIIClean installation in Orlando, FL. This sediment filter is used to pre-filter water as it enters a home and prevents the whole house filter from getting clogged.

October-November-December Contest Has Begun
The contest continues each month through the end of 2011, with monthly finalists selected at the end of every month. The October deadline is coming soon. Subsequent monthly winners will be chosen after November and December entries are judged. The next iPad winner will be announced in January.

Send Us Your Photo Today!
The October competition closes in just a few days, and time is running out to enter in 2011. Don't miss out on this chance ! To enter a photo of a LAKOS product into the competition, visit You could be the next winner of an iPad2!

ASHRAE Agrees You Need Filtration - Use This ROI Tool To Determine How Much


The best engineers in the HVAC industry have known for years that effective filtration is a smart move when it comes to working with cooling towers. Minimizing energy costs, keeping the entire water system operating at maximum capacity, and making water systems more sustainable are just a few perks that come along with proper filtration. Reducing health risks is also a benefit, as evidenced by repeated cases of Legionnaires’ disease around the world when these practices are not followed. Outbreaks of this dangerous type of pneumonia have been popping up all over the world in recent years, including the California State Capitol Buildinghotels and hospitals in Miami and many more. Not even the Playboy Mansion has been immune. Most recently, the Aria Hotel in Las Vegas, NevadaLegionella Virus experienced an outbreak of the disease.

According to OSHA, every year in the United States there is an estimated 25,000 new cases of Legionnaires’ Disease, 4,000 of which result in death. Almost all of these cases are a result of exposure to the bacteria from the water system in a non-residential building water system, such as a hotel or hospital.

Legionella Prevention Should Include Centrifugal Separators
Frustrations that Legionnaires’ Disease continues to occur is reaching new levels. Fines have been levied on organizations that fail to take proper safeguards, including a recent case in Great Britain where an elderly man died after contracting the disease in a hot tub at one of Scotland’s top vacation resorts. On top of a £120,000 ($193,320 US) fine, the resort could be forced to pay the victim’s family up to £1 million ($1,611,000 US) in court.

The resort has plead guilty to a lack of suitable and sufficient risk assessments. Facility managers admitted to discounting the threat of Legionella because their water systems were part of a new installation.

New ASHRAE Standard Sets New Requirements for Legionella Prevention
New ASHRAE Standard 188P is currently up for public review and is expected to be approved and published soon. The publication will specify requirements for prevention of Legionellosis associated with building water systems. 188P is different fromGuideline 12 in that the new standard outlines the practice of exactly what must be done with all those recommendations.

Compliance with the Standard requires facility managers and owners to take responsibility for controlling Legionella in their building water systems. Not only that, but they will be proactively complying with what will most likely be incorporated into local building codes. At the same time it acts as a defense against accusations of negligence in cases which are caused by unknown sources.

DOWNLOAD Our FREE Filtration Return On Investment Tool
Which LAKOS product is best for your cooling tower filtration, and how much energy and water can you expect to save by installing one? Download our Excel-based software tool and determine the Return on Investment (ROI) for different options. This ROI tool is a comprehensive guide to getting started on selecting the best option for you. See how effective filtration can pay for itself in energy and water savings in a very short amount of time and reduce health risks at the same time. Download it today!

Call and Data Center Filtration Keeps Huge Banks Afloat

Each and every day, call and data centers around the world are handling increasing network activity and heavy service loads. The huge growth in smartphone usage, together with cloud computing and other communication technologies are feeding this increased demand. A recent data center census of key industry experts reported a projected 19% annual growth in data centers next year. Each of these centers can handle a large amount of traffic. In Ohio, for example, a particular call center for a major financial institution handles inquiries for over 15 million customers. With a job that big, this bank can’t afford to have operational problems in their support centers. Not with their computer systems, phone systems, and not with their heating and cooling water systems.

Computers generate large amounts of heat, and that heat can harm system components. State-of-the-art cooling systems are typically installed in data and call centers to save energy and keep the office (and these "server farms") operating at their highest efficiency.

Filtration Is A Key Component And Part of Best Practices
Companies requiring data and call centers have been developing their own set of Best Practices for data center design and operation. These include all that new technology has to offer, as illustrated in the one that Facebook just built in Oregon. Through trial and error, many of these companies are reaching the inescapable conclusion that filtration of the water in the cooling system not only pays for itself in energy savings in a very short amount of time, but also minimizes wear on other system components. This results in increased sustainability and extends the life cycle of the entire system. Not to mention, minimizing liability risk (little or no maintenance) and risk of disease (Legionnaire's  Disease, as one example).
Data Center Filtation
Bank Uses Filtration to Solve Dirt Problems
At a call center in Idaho, the facility was experiencing solids accumulation in their cooling tower basin, which was leading to downtime and fouling of their heat exchangers. This led to higher energy costs as well as interruptions in service in parts of the facility. Several different possible solutions were considered. The final decision was to install a LAKOS cooling tower filtration system. The TowerClean filtration system was selected after evaluating the different requirements for this particular installation. Within 24 hours a significant amount of solids and particulates had already been removed.

By installing the TowerClean filter, the call center's water treatment system is now able to operate at optimum performance levels once again. Their operations team is now free to focus on other parts of the service facility, as well as customers, while the filtration system keeps them worry free.

FREE Download - Case Study
Download our FREE Call Center Case Study containing all the details of this particular filtration solution, along with photos of the installation. Read why the lead engineer who manages the system says "I would recommend this product to everyone!"
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