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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.

Obama Speaks Out on California Drought and Irrigation Water Savings


The ongoing California drought has brought national attention to the Central Valley, where much of the country’s produce is grown. The situation has become so severe that even President Obama is visiting the region this Friday to bring attention to the crisis that has dried up the Valley. Analysts and journalists speculate that he will be in Fresno, CA to support legislation that will bring millions of dollars in aid to local farmers. If signed, this bill would provide hundreds of millions of dollars to farms for conservation efforts and upgrades to existing water systems. California Drought Dry Riverbed 2013 resized 600

3 Ways To Conserve During A Drought
The dry conditions mean everyone is looking for innovative ways to protect resources and equipment. Here are three ways you can do your part to help:

1. Farming communities are relying more and more on groundwater reserves, which are only getting lower. Many are drilling new wells or uncapping old ones that have sat idle for years. For these wells, sand damage can be a major problem to the pumping equipment. Installing a pump protect separator can protect pump impellers and allow the system to use less energy when extracting the water.

2. Proper irrigation filtration is key to successful water savings. Sand or other solids can plug up nozzles, sprinklers, or drip emitters leading to wasted water and energy. But without a good underdrain design, sand media filters can require extra backwashing, wasting even more precious water. Make sure you’re using effective media tanks in your irrigation system, and even consider a pre-filtration system for reduced backwashing.

3. Encourage your local schools and governments to institute water saving practices and educational programs. Municipal water systems can install separators like the PWC to save energy and water. Schools can educate the youngest members of our community so that the next generation of citizens continue to innovate new technology for saving our planet.

Learn More About Irrigation Water Savings

CLICK HERE to download a full color brochure all about irrigation water savings. From groundwater well pump protection, to source water intake screens, to media tank pre-filtration, this download highlights all of the ways filtration can help preserve water and energy during this historic drought.

Filtration Is A Smart Choice For Smart Irrigation Month


Every July is Smart Irrigation Month sponsored by the Irrigation Association, and this year, it’s more important than ever. With record-breaking heat across the United States and other regions, everyone is looking towards creative technology and solutions to conserve water. With the U.S. population projected to grow an amazing 42% between the years 2010 and 2050, water is becoming an increasingly rare resource. Fortunately, there’s a few ways everyone from the homeowner to the farmer that can do their part to conserve water with the latest filtration technology.

Residential Filtration Can Save Water, Energy, and AppliancesSmart Irrigation Month

Smart Irrigation Month doesn’t apply just to farmers. In single family homes, outdoor uses like landscaping and irrigation account for nearly one third of homes’ water use, (followed by toilets and washing machines).

If you’re on a private well, an excellent way to conserve water is by installing a filtration system to effectively remove solids from your supply. Even landscape and irrigation water should be free of solids. Dirt and debris can block a sprinkler valve, permanently forcing it into the open position, potentially flooding a yard and wasting water. And in many regions, water waste can lead to heavy fines or penalties. A SandMaster separator installed before the pressure tank, or a TwistIIClean installed after it, is a great way to prevent this unnecessary flooding in your yard or garden.

Proper filtration in the home will also keep your faucets and appliances working efficiently and prevent them from clogging. According to the EPA, “water-efficient household appliances and fixtures can yield significant water savings, and careful selection of construction materials can conserve natural resources and improve indoor air quality.”

On top of all these benefits, smart water use can save energy: “Water treatment and distribution are highly energy-intensive, as are many water uses that involve heating, chilling, softening, or pressurizing it for various needs.” So by utilizing filtration, other equipment (like pumps) don’t have to work as hard, preserving energy along with water savings.

Reduced Backwashing Is Smart Irrigation

The water saving concepts in residential filtration also apply to irrigating farmland; care should be taken to prevent clogging and wasted resources. Sprinklers and drip emitters can clog, causing excess watering and energy waste. Media tanks like the ProII or SST are ideal for removing unwanted solids in these applications.

But to save even more water, media tanks can be paired with an IHB centrifugal separator to create a Backwash Reduction System (BRS). By stopping excessive backwashing, water loss can be prevented even further - now that’s Smart Irrigation! This separator can be connected to all existing sand media filters, regardless of size, manufacturer, or date of installation.

Smart Technology for Smart Irrigation

Computers, technology, and filtration are constantly improving and evolving. Not only that, but they can help each other evolve. One company has been leading the charge for continuous filtration technology improvement for over 40 years. LAKOS Separators and Filtration Solutions has been improving their patented centrifugal filtration technology for decades, along with paving the way towards better community filtration education.

Part of their latest education efforts is the launch of a brand new webpage dedicated to
irrigation filtration solutions. uses the latest cutting edge technology to improve filtration education and enhanced state-of-the-art graphics aimed educating the world about the importance of irrigation filtration. The all new page features new content, organized tabs and icons for easy selection, as well as expanded news and events. The new design makes it easier for visitors to see the importance of smart filtration choices for irrigation, groundwater, industrial and heat transfer applications.

Visit the all new Irrigation Filtration Solutions page TODAY to see what all the hype is about! If you have any questions or comments, feel free to contact the webmaster at the bottom of the page.

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


River Filtration Takes Center Stage During National Park Week


This past Monday was Earth Day, and this entire week is National Park Week -- a good time to think seriously about the natural world around us.

Water pollution causes problems in many areas of our lives, effecting our drinking supply, manufacturing processes, and irrigation methods. On almost every continent, polluted rivers, canals, aqueducts, and lakes are a growing concern. In addition to increased risks for disease, decaying vegetation, and harming regional animals, polluted source water also means clogged waterways that negatively impact our agricultural and industrial water systems.

River Water PollutionAn International Movement

The water pollution problem isn't just isolated to one country or continent; it's a global epidemic, effecting every corner of the Earth. Thankfully, several nations are leading the charge to find innovative ways to clean up the mess.

China has recently promised to spend $16 billion over the next three years to clean up the heavily polluted rivers. The Shanghai River provides water to 23 million residents, but has recently suffered from severe pollution, including thousands of dead animals infiltrating the waterways. In India, residents of Nagpur have joined forces to put an end to the Nag River pollution problem. Sewage and garbage has taken over the river making the water unusable, but a clean-up campaign has gained momentum, calling for the river’s clean up. And according to a new government report, the United States isn’t a stranger to river pollution, either. The study shows that more than half of the U.S.’s rivers can only be classified as “poor” due to pollution. Government agencies and environmentalists have used this week's Earth Day to vow action to save our waterways.

National Park Week Highlights River Pollution Problems

With this week being National Park Week in the United States, nature advocates are taking the opportunity to highlight our serious river pollution problem. They point out that a recent government study on U.S. rivers warns that our future water demands will mostly come from municipal and industrial needs, as the population continues to grow. That means the need for proper source water filtration will continue grow as well.

The Source Water Pollution Solution

Fortunately, there is an easy solution for cleaning water taken from these dirty rivers. A self-cleaning pump intake screen is a low maintenance solution that stops larger debris like fish, organics, and garbage from entering the water system. The entire screen rotates so that debris is pushed away, instead of clogging the screen, wasting time and energy. With large debris stopped before entering the water treatment system, there’s less wear and tear on pumps and finer filtration systems. With a pump intake screen, water is much easier to treat for irrigation, industrial processes, consumption, or other uses.

Download a FREE Pump Intake Screen Informational Brochure

A new and exclusive source water filtration brochure is available for the first time HERE. The informational sheet highlights all the benefits of pump intake screens, including full color drawings and pictures. Find out how these self-cleaning screens are the right choice to protect your water systems.

New Irrigation White Paper Explains the Importance of Filtration


Filtration Puts the Freeze on Winter Crop Damage
Freezing temperatures have an
impact on agricultural regions, causing damage to fruits and vegetable crops and forcing farmers to devise ways to protect their crops from frost damage. During these harsh winter months, many farmers turn to filtration to help protect their harvest. Using micro sprinkler systems, along with a proper filtration system, water can be sprinkled on to the produce, which then freezes, releasing heated energy onto the crops. The warmth from the liquid-to-solid-state transformation keeps the produce warm enough to avoid frost damage.

Irrigation Filtration LAKOSIn order for these micro sprinkler systems to work most effectively, filtration must be used to prevent the spray nozzles from clogging. Sand media filters are the perfect filtration solution for this situation, and for extra protection, a centrifugal sand separator can be installed before the sand media tanks in the water line to remove the larger dirt and solids before it reaches the tanks and other system parts.

Irrigation Filtration Showcased at World Ag Expo Last Week

The World Ag Exposition took place last week in the heart of the agriculturally rich Central California. The Expo --the world’s largest agriculture trade show -- prominently features irrigation and groundwater filtration solutions from around the globe.


At the heart of this ag filtration show every year is the premiere brand in irrigation filtration: LAKOS Separators and Filtration Solutions. LAKOS sand media filters have been protecting irrigation systems, sprinklers, and drip emitters  for decades. Their unique underdrain system provides an optimum, even flow, while providing longer operating cycles and the best backwash results in the industry.

New White Paper Explains The Importance of Irrigation Filtration
A new, recently published white paper explains in detail the importance of irrigation filtration and how to choose the right filter for each irrigation application. Written by an industry expert, this paper was presented at the annual Irrigation Association trade show and clearly illustrates the features and benefits of each option for irrigation and groundwater applications.

Available for the first time to the general public, CLICK HERE to download this resource of the Best Practices in the field of Irrigation Filtration.

Filtration: Superhero of Industrial Processing

Filtration ManSuperheroes are always swooping in to save those in distress or defeating bad guys. But men and women in tight suits and capes aren’t the only superheroes out there. Filtration is the unsung hero of industrial processes, swooping in to protect equipment while defeating the bad guys - unwanted solids build-up.

These unsung heroes of solids removal can be found in industrial processes in every industry around the world. From cooking oil filtration in a snack food factory, to equipment protection in an ethanol plant, or to spray nozzle protection in a steel plant, separator superheroes save the day on a regular basis.

Iron Man 3 and Man of Steel don’t play in U.S. theaters until this summer, but they’re already developing a lot of hype as some of the most anticipated films of 2013. It’s no wonder that these beloved characters have stood the test of time, drawing more fans with every movie, video game, or toy. Both Iron Man and Superman, the Man of Steel, are iconic figures of strength and endurance, just like the materials that are their namesakes.

Because the iron and steelmaking processes are so important, it’s essential that steel manufacturing equipment is clean and functioning at all times. Unfortunately, because of the nature of the production process, this can often be a challenge. Mill scale, slag, dirt and other fines can clog spray nozzles or settle in basins and scale pits, causing operations involving water, like cooling and de-scaling, to be compromised.

Filtration To The Rescue
The best defense against these industrial villains is filtration. Industrial processes demand clean water for operating efficiency. A separator (or multiple separators used in a series) is the best way to combat clogging or fouling.

A centrifugal-action separator installed before descaling or cooling nozzles can remove settleable solids before they can clog. If a separator is installed before a cooling tower, the filtration system can remove solids before they can damage the tower or the manufacturing process. This provides better energy efficiency, cleaner water, and less downtime. Strategically placed filtration is the superhero for improved product quality in the steelmaking process.

FREE New Industrial Filtration Brochure
This new filtration brochure provides a comprehensive look at the all industrial filtration heroes. The quick reference chart makes picking a filtration solution easy! The full color document also outlines the importance of low-maintenance purge and handling options, as well as the environmental savings of filtration.

CLICK HERE to download the new industrial filtration brochure now!

White Paper Highlights Filtration ROI and Energy Savings


With fears of global warming, expanding carbon footprints, and depleting fuel resources, “energy efficiency” is more than just a few buzzwords. It’s a growing major concern for every nation on the planet.

Many countries are now taking concrete steps to improve energy efficiency and lower dependency on natural resources. The European Union recently implemented their Energy Efficiency Directive. The plan calls for all countries in the union to lower their energy use by 20% by the year 2020. With a constantly growing population using more energy everyday, this is a huge challenge.

energy savingsAcross the pond in the United States, the Energy Policy Acy of 2005 is keeping developers busy, finding way to save energy in new and existing structures. The act includes a series of tax credits and incentives for builders who implement energy saving equipment in their projects.

One available credit under the act is about to expire. Available to building owners or to contractors working on government buildings, the Energy Efficient Commercial Buildings Tax Deduction expires in 2013. Already extended once in 2008, the tax incentive encourages building owners to increase the usage of energy saving equipment.

Filtration Is Key To Saving Energy
Filtration plays a key role in saving energy in HVAC installations. Unwanted solids can enter cooling systems, clogging or fouling heat exchanger equipment. That can lead to excessive energy and water waste, as well as increased maintenance and downtime. These problems negatively affect sustainability and system efficiency, driving energy usage up.

Adding a separator or other filtration system is a great way to save energy. In many cases the installation of a separator will result in measurable energy savings so effective that they often pay for themselves in less than a year. A large department store chain discovered just how great those savings could be when they installed different filtration options in different stores and compared the results. Those results were put in a Case Study, which was analyzed in a recent white paper published and presented at the AHR Exposition last January.

LEARN MORE About Filtration Energy and Cost Savings in FREE White Paper
Noted HVAC Energy Consultant George Oranski has written a white paper entitled "Energy Conservation through Filtration and Hydronic Free Cooling " in which he reviews the findings in this Case Study and outlines the benefits of an effective filtration system. His conclusions:

  • A total of 15% total electric savings was realized.
  • Chemical usage was reduced 15 to 20% and major maintenance savings was recorded.
 CLICK HERE to download this FREE, comprehensive white paper, and start thinking now filtration can improve your hydronic cooling system and save energy and money at the same time.

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.

Big Breakthrough In Waterworks Filtration


Public water systems have played an important role in the development of civilizations throughout history. Our nomadic ancestors were only able to settle in one location thanks to the development of water systems. Over thousands of years, humans have relied on aqueducts, pipes, and wells to bring fresh, clean water to their growing cities and villages.

Just last month in Jerusalem, archaeologists unearthed a 3,000 year old reservoir beneath the city. The newly found basin is one of the largest ever discovered in the ancient city, and could hold 250 cubic meters (66,000 gallons) of water. Historians say that the reservoir, near the Temple Mount, was used by the general public and pilgrims for everyday activities like bathing and drinking. The excavation was part of a project to map ancient Jerusalem’s drainage channel.

Filtration Emerges In Early Greece waterworks plant
While early communities mastered the technique of bringing water to the people, in later centuries keeping the water clean was a bigger challenge. As early as 4000 B.C., ancient Greeks were experimenting with filtration techniques using charcoal filters and strainers to reduce turbidity.  During the 1700s filtration was finally established as an effective means for removing particles from the water supply. Today filtration, along with proper chemical water treatment, is regarded as the best way to keep public water systems free of unwanted solids and disease-causing contaminants.

New NSF Certified Filtration Product Line Keeps Municipal Water Clean
Today’s modern filtration technology and water research continues to to improve water quality with each passing year. A new line of NSF-61 certified Public Waterworks Separators has been released by LAKOS Filtration, and these breakthrough products are groundbreaking in that they are the first municipal particle filtration systems to provide NSF certification for higher flow rates. The new separators can meet the demands for clean city water, removing sand, grit, and scale from pumped water systems, while remaining an economical solution.

Information on this new municipal filtration technology is now available for FREE. Download this extensive new brochure detailing how the new PWC Series separators efficiently remove unwanted solids from the public water supply, and read how they have been both independently-tested as well as certified for NSF-61.

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