WEFTEC Attendees Lined Up to Experience the New Hallett

The water quality sector is making great technological progress, and UV Pure is leading the charge with our innovative Hallett systems for UV water disinfection.

These are just a couple observations the UV Pure team gathered while recently exhibiting at WEFTEC, an annual industry event showcasing technologies and innovations related to water quality. The 2019 edition was held on 21–25 September in Chicago, IL and attracted more than 20,000 industry professionals.

UV Pure was elated to showcase the New generation Hallett, which was launched earlier this year, and the highly receptive market to the technological upgrades from generation 1 & 2 Hallett to the New generation Hallett was beyond our expectations.

Strong interest in the new Hallett

While UV Pure is no stranger to WEFTEC, significant buzz sparked this year with the arrival of our New generation Hallett systems.

Our customers and industry colleagues had familiarity with the first two generations of our UV water disinfection units, powered by UV Pure’s award-winning Crossfire Technology. That made it all the more encouraging to receive such positive feedback regarding the various new features and technology updates in the new Hallett, including:

• The new Hallett 1000, our largest model yet, which can handle flows up to 100 US gpm
• Improved dual UV sensor array design with quad-sensor models available
• Better temperature management with built-in purge valve and available lamp heaters
• Color touchscreen interface
• Remote start capability

With the New generation Hallett offering such sensible pricing, WEFTEC attendees and UV Pure customers were able to see the product for what it truly is: innovative, leading, and reliable.

High demand and promising opportunities

There was a stable green light at UV Pure’s booth throughout WEFTEC. Our team members– which included Alex Zammit, Service Manager; Alok Paliwal, Sales Director; David McNamee, Director of Operations; and Bruno Puiatti, Director of Business Development (Clearford) – kept busy with significant conversations and product demos throughout the entire event.

“It was great to see so many familiar and new faces among those visiting our booth,” said Alex Zammit. “The heavy traffic led to countless conversations explaining the capabilities of the third-generation Hallett and discussing how we can provide solutions to diverse water challenges,” he continued.

In addition to seeing considerable interest from attendees in placing orders for Hallett units, we also laid the groundwork for promising business development opportunities in California, the Northeast US, Western Canada, and Eastern Europe.

Inspiration to keep raising the bar

As always, UV Pure’s team found it inspiring to see the innovation on display at WEFTEC and the passion with which our industry colleagues are tackling water quality challenges. WEFTEC reopened our eyes to seeing that when it comes to UV water disinfection, UV Pure is truly a leader.

To learn more about what sparked so much interest our new Hallett at WEFTEC, download the New generation Hallett packet . Contact Us today to to discuss your water disinfection requirements and find out how UV Pure can help.

Raising the bar for UV water disinfection with the new Hallett

Following years of development and testing, UV Pure launched the third generation of our popular Hallett UV water disinfection system earlier this year. As we now ramp up production to meet growing global demand, we want to share how the new Hallett makes safe water more accessible than ever.

Versatile UV water disinfection for diverse needs

Same as the previous generations, the new Hallett offers reliable water disinfection for a wide range of applications. Our new product lineup includes models with varying capacities divided into four categories:

  • Hallett P models for potable water applications, such as commercial and residential use. The 500PN and 750PN are available with NSF 55A certification. The 1000P is available with EPA validation.
  • Hallett W models for wastewater applications, including industrial use. The 1000W is available with EPA validation.
  • Hallett R for reuse applications, such as in agricultural and recreational settings. The 1000R is available with NWRI validation for water reuse.
  • Hallett NC for non-certified applications. These models are made to the same high performance standards as our certified products, with any differences limited to non-core features.

Third-party validation is pending for the Hallett 500 & 750 R, W models along with all NC models.

Our new Hallett 1000 models across these categories have also been validated for US Environmental Protection Agency (EPA) performance standards for UV water disinfection, which opens up new markets that require EPA validation.

Larger, more powerful units

One of the exciting developments with the third-generation Hallett is the introduction of high-capacity models. The new Hallett 1000 models can handle flow rates up to 100 gpm, up from the previous maximum of 30 gpm. For applications requiring higher flows – e.g. municipal water systems – multiple Hallett 1000 units can be connected to allow flows up to 1 MGD.

For enhanced performance, these larger units feature amalgam lamps with higher output and an extended lamp life of up to 12,000 hours. Some larger models also come with quad UV sensors to support higher-accuracy measurements of UV dose and UV transmittance (UVT).

Smarter technology and improved design

Incorporating years of feedback from customers, technicians, and our in-house experts has helped us make major technology and design enhancements in the new Hallett. Here are a few highlights:

  • UV dose display to enable hourly, daily, or weekly dose recording
  • A real-time clock to facilitate troubleshooting with time and date stamps for errors and warnings
  • A wiper position switch to accurately sense wiper movements in low UVT applications and optimize the wiper parking position
  • Data logging at 30-second intervals on a USB key
  • A double door hinge design to allow easier lamp changes and servicing of system components
  • A purge valve on all units except NC models
  • Improved UV sensor housing to protect sensors during system handling and sensor calibration

Optimized performance and remote operation

Dependable performance is crucial to ensure that our Hallett systems can provide safe water in varying operating environments. That’s why the third-generation Hallett features forced-air cooling to prevent overheating and optional lamp heaters to enable use in extreme conditions without the need for a cold air kit.

Dependability also means that users can trust that their systems are running well even when they are not on site. Remote start/stop capabilities mean the new Hallett can remain on standby until a remote signal starts the UV system. The new models also provide more system information to remote operators, allowing them to prevent possible shutdowns rather than dealing with problems after they occur.

Delivering safe, clean water through innovation

Global demand for safe, clean water continues to grow, and innovations in water technology are rising to the challenge. As a pioneer in UV water disinfection, UV Pure continues to help customers meet their water needs across diverse industries, applications, and markets with the third-generation Hallett.

If you would like to learn more about the new Hallett’s technical specifications and how it can meet your water requirements, please contact our business development team.

Safety first: NSF and EPA certifications for UV water disinfection

UV systems provide fast-acting, environmentally responsible water disinfection, making them an attractive alternative to chemical water disinfection.

As use of UV water disinfection systems grows, there is an important question to answer: how do end users know that a system is safe to use?

In this blog post, we examine the role of NSF and EPA certifications for UV water disinfection systems in ensuring water safety and providing peace of mind.

Navigating the certification environment
Given the importance of safe water and the risks posed by unsafe water, it is surprising that neither Canada nor the United States have federal regulations for UV water disinfection in residential settings.

However, the lack of mandatory standards does not mean there are no standards. For example, NSF International, a globally recognized organization that develops public health standards

and certification programs, has created a set of voluntary standards for UV water disinfection technology designed for home use.

There are different NSF standards depending on the function, size, and end use of a product, but they are all intended to ensure safety and protect human health. While not required by law, many manufacturers of UV water disinfection products pursue NSF certification to show that their systems meet these minimum performance and safety standards.

The United States Environmental Protection Agency (EPA) is another source of standards for UV water disinfection covering both potable water and wastewater, although its focus is on public water applications rather than residential use. While the EPA is a US government body, its standards are nonetheless recognized worldwide.

Understanding the certification process
With end users placing their trust in certification, the testing process is understandably rigorous.

Broadly speaking, these are the key elements of the procedure for attaining certification:

  1. The manufacturer submits its UV water disinfection product and detailed documentation to a testing lab.
  2. Professionals at the lab thoroughly review the documentation to gain a full understanding of how the product is designed and works, including all underlying technology and any functional constraints.
  3. They then systematically test the product to ensure alignment between the documentation and actual construction and performance. This includes measuring performance against minimum standards – for example, consistent delivery of a minimum UV dose.
  4. The lab also carries out an inspection of the manufacturer’s production facilities to ensure they are up to standard.
  5. If the lab determines at the end of this process that the product meets all requirements for certification, the manufacturer is granted permission to identify the product as certified for that specific standard.

With safety the main priority, regular retesting and production facility inspections are required for a product to maintain its certification. In addition, re-certification is required any time a manufacturer makes changes to a product, and each model of a given product must be certified separately.

For NSF certification, testing can be carried out either in an NSF International lab or in other third-party labs that offer testing and reporting based on NSF standards. Meanwhile, the EPA does not offer its own testing services, so all testing to meet EPA standards is carried out by third-party labs.

Recognizing the value of third-party certification
Whether you’re an engineer, homeowner, or procurement specialist, third-party certification can help you make an informed decision when purchasing a UV water disinfection system. Safety and reliability are essential no matter where you intend to use this technology, and certification based on recognized industry standards offers peace of mind that these requirements will be met.

UV disinfection systems intended for use at a public or commercial site (e.g. hospital, campground, hotel, etc.) generally require certification. In these settings, certification is essential for protecting public health, meeting compliance obligations, and managing liability.

For residential use, the choice between certified and non-certified systems comes down to personal preference. While non-certified systems may come with a lower price tag as they can forgo the rigorous yet costly certification process, it is up to the individual end user to balance this against safety and reliability considerations.

Maintaining high standards at UV Pure
At UV Pure, safe water is our top priority. This commitment is reflected in our adherence to globally recognized safety and technology standards, with most of our UV water disinfection products carrying NSF or EPA certifications.

While we do offer non-certified products as well, these are made to the same high performance standards as our certified products, and any differences are limited to non-core features.

When human health is on the line, there is no room for doubt. Fortunately, NSF and EPA certifications for UV water disinfection systems set the bar high, giving individuals and organizations around the world confidence that their water is safe to use.

Safe water technologies: An introduction to UV water disinfection

Water is used everywhere, from agricultural and industrial to residential and healthcare settings and beyond. Whatever the specific application – whether it’s potable water, wastewater, reuse water, or rainwater – safety is paramount.There are many ways to make water safe for use, including various processes for filtration (nano, ultra, and reverse osmosis) and disinfection (chemical and non-chemical). Which process or combination of processes is used depends on various factors, such as the initial water quality, intended end use, and logistical and economic considerations.

In this blog post, we focus on ultraviolet (UV) water disinfection, providing an overview of where it fits into the big picture of water disinfection, how it works, and how it is evolving.

The water disinfection landscape

In general, there are two main categories of water disinfection technology:

1. Chemical technologies, which include chlorine, ozone, and peracetic acid
2. Non-chemical technologies, which include UV disinfection

uv-water-disinfection-benefitsEach technology has a unique set of advantages and disadvantages. For example, chemical disinfection using chlorine is highly reliable and inexpensive, but it also poses safety risks related to the handling of chlorine and the creation of toxic byproducts.

When deciding which technology is best for an application, engineers typically take into consideration a range of factors, including requirements for biocidal efficiency, practicality, reliability, cost, environmental impact, and occupational health and safety.

Harnessing the power of UV light

UV water disinfection harnesses the germicidal power of short-wave UV light – specifically at the 254 nm wavelength – to damage the DNA of cells and viruses. Applying UV light at this specific wavelength to water renders any microorganisms sterile, thereby disinfecting the water.

The first use of UV water disinfection technology was in 1910. Since then, the use of UV systems has grown as the technology has evolved along with scientists’ understanding of how UV light combats waterborne threats.

Compared to chemical disinfection technologies, non-chemical UV disinfection offers several key benefits in terms of safety and efficacy, including:

  • Fast-acting, triggering a reaction almost instantly
  • No disinfection by-products
  • Safe and chemical-free, avoiding the handling and disposal hazards associated with chemicals
  • Environmentally responsible technology
  • Does not alter water chemistry and its constituents, such as pH, taste, odour, colour, etc.
  • Proven and trusted

Different technologies for UV water disinfection

Since that first application, the sophistication and capabilities of UV water disinfection technology have grown exponentially. While manufacturers offer endless options for UV water disinfection systems spanning different makes, models, and specifications, they can all be grouped into two main categories:

  1. Light-in-a-pipe systems. In these systems, pressurized water is exposed to 254 nm UV light as it flows through a quartz tube. Light-in-a-pipe systems are advantageous in that they offer greater control over water conditions within the system, such as preventing exposure to airborne pathogens. However, they can be costlier to operate given increased energy requirements and maintenance costs.
  2. Channel systems. In these systems, non-pressurized water is exposed to 254 nm UV light as it flows through an open channel. Channel systems are often used to disinfect large water streams – especially wastewater streams – as they can offer lower operation and maintenance costs. However, channel systems are also more vulnerable to airborne pathogens and other risks due to their open nature.

As both types of systems have advantages and disadvantages, it’s important for engineers to understand their options and find the best fit for their project requirements.


Making water safer with better UV technology

UV systems are already a safe and reliable solution for disinfecting potable water, wastewater, reuse water, and rainwater, and they are only becoming better with continual advances in technology.

Here are a few of the ways in which UV water disinfection technology is becoming smarter and more effective:

  • UV dose consistency. Maintaining a consistent UV dose is important to ensure that all the water flowing through a UV system meets the minimum requirements for safe disinfection. Advances in lamp technology allow lamps to be calibrated to operate at a higher intensity initially and maintain the minimum required lamp intensity until the very end of their lifespan.
  • Real-time monitoring. UV systems typically have sensors to indicate when performance falls below minimum thresholds. However, when sensors are poorly calibrated or the cause of an alarm is not clear, it can be a nuisance for operators. Fortunately, smarter sensors and remote real-time monitoring are continually improving reliability while reducing maintenance requirements.
  • 360-degree coverage. Suspended and dissolved solids in the water can cause shadowing within a UV disinfection system, reducing its efficacy and thus the safety of the water. This challenge is being overcome with smarter system design, such as using dual lamps and reflectors to provide 360-degree UV light coverage that attacks pathogens from all angles.

With some countries actively shifting away from chemical disinfection of water due to health and safety concerns, demand for UV water disinfection is set to grow further. And with smarter technology making UV systems a better choice across diverse applications and industries, understanding UV water disinfection is becoming increasingly important for engineers around the world.

Five considerations for upgrading an existing UV Pure system

Over 18,000 UV Pure systems are operating worldwide – with many providing years or even decades of reliable disinfection performance in potable, wastewater, and reuse applications. Over time, requirements for some sites can change, leading operators to evaluate different disinfection options to cope with higher flow requirements, changing water quality, emerging pathogenic threats or other factors.

The introduction of UV Pure’s new Hallett product line addresses these upgrade challenges with new technology, higher-capacity flow rates, and lower power consumption while continuing to provide the low-maintenance, highly reliable performance that operators trust from UV Pure.

As the UV Pure team prepares to ship the first of these new Hallett systems in early 2019, we share some answers below to common questions about the new units.

How are the new Hallett units similar to UV Pure’s proven Hallett 15xs and Hallett 30 systems?

The new Hallett units are still powered by UV Pure’s patented Crossfire Technology™, which includes automatic self-cleaning wipers, smart sensors, and built-in purging to prevent fouling of the quartz sleeve by mineral scaling and biofilm. This makes Hallett systems up to 10 times more effective in difficult water applications than conventional UV systems.

How are the new Hallett systems different from existing Hallett units?

The new Hallett units have been completely redesigned with better features and operability. The new systems can handle flow rates of up to 100 gpm (378 L/min) per unit while continuing to provide robust, reliable disinfection under the toughest conditions. For higher flow applications, multiple Hallett units are connected to achieve flow up to 1 MGD (3,785 m3/day).

What happened to UV Pure’s Upstream products?

Upstream systems will be discontinued in early 2019, but UV Pure will continue to offer replacement parts and full product support for years to come. New Hallett NC systems will replace Upstream models for disinfection applications that do not require product certification or validation.

How does UV Pure ensure its systems provide the appropriate level of public health and environmental protection?

UV Pure is offering a new Hallett system that is validated to the US Environmental Protection Agency’s (EPA) UV Disinfection Guidance Manual (UVDGM) protocols, as well as to the National Water Reuse Institute’s (NWRI) UV Disinfection Guidelines for Drinking Water and Water Reuse.

What type of warranty is available for replacement lamps?

UV Pure continues to offer a 12-month limited warranty for LPHO lamps, while amalgam lamps in the new Hallett 1000 model will be covered for 16 months.

Learn More:

Click here or below to download a brochure that answers your questions about the new Hallett, or please contact us here.


Testing the waters at WEFTEC 2018 with UV Pure’s new low-maintenance disinfection systems

Most water and wastewater system operators can’t believe that UV Pure Hallett systems can operate for months, or even years, without manual cleaning – a time-consuming process typically required for conventional ‘light-in-a-pipe’ UV systems.

This was one of the key takeaways from UV Pure’s product session at WEFTEC this year, which was attended by over 20,000 water industry professionals in New Orleans, Louisiana, from September 29 to October 3, 2018.

UV Pure’s Service Manager, Alex Zammit, led a technical session at WEFTEC, which showcased how the company’s patented self-cleaning system removes scale and buildup from inside the quartz sleeve. Although the session was initially expected to last half an hour, it was extended to over an hour as Alex answered a flurry of questions about Crossfire Technology™ and how it helps dramatically reduce time and money spent on system maintenance.

WEFTEC 2018 UV Pure

UV Pure’s sales representatives My Linh Le Thi and Alok Paliwal were also in the thick of the action at the event. They spoke with attendees one-on-one and demonstrated the one-minute lamp change that’s enabled by the unique vertical air-mounted lamp design of the Hallett systems.

Clearford Koester Canada’s VP of Sales and Marketing, Peter Rupcic, accompanied the team as a key business partner and spoke with attendees about the strengths of the business partnership between Clearford and UV Pure. This includes the ability to design, build, and operate complete water and wastewater treatment facilities for small communities that incorporate UV Pure disinfection.

Attendees at WEFTEC were also interested to learn more about the new support program that UV Pure will be launching in the coming months. This program will offer training sessions and dedicated resources for clients and channel partners. Stay tuned for more details!


For service inquiries, we welcome you to contact Alex Zammit, here.

Our team will be happy to assist you for sales in:

  • Ontario, Manitoba, and Eastern and Midwest USA, contact: Alok Paliwal
  • Quebec, Atlantic Canada, Western Canada, and Western USA, contact: My Linh Le Thi 

Lighting the path to safer water with a new high-performance Hallett series

On October 1, UV Pure will launch its new reliable, self-cleaning Hallett™ series at WEFTEC 2018 in New Orleans. UV Pure’s new Hallett 1000 model joins the existing family of Hallett systems to provide advanced UV disinfection for potable water, wastewater, water reuse, and rainwater harvesting in municipal, industrial, and commercial applications.

The new Hallett family includes re-designed models from Potable, Wastewater, Reuse and NC product lines.

Hallett NC replaces the Upstream™ product line for applications that don’t require formal certification to NSF/ANSI standards or performance validation under US EPA and NWRI testing protocols.

UV Pure’s new Hallett Potable models provide the highest level of reliability and protection for public and private drinking water systems, including the most challenging applications for hard and mineral-rich water. Multiple smart sensors continually monitor UV dose, lamp intensity, and UV transmittance (UVT), and they can trigger an alarm or shut down the system entirely if treated water quality does not meet specified thresholds.

The Hallett PN series includes models that are certified to NSF/ANSI standards (pending), while Hallett 1000P systems will be validated to meet the US Environmental Protection Agency’s (EPA) globally accepted protocols for UV water disinfection. Water industry professionals rely on these designations for assurance that UV disinfection equipment provides the highest level of pathogen inactivation, public health protection, and regulatory compliance.

UV Pure’s new Hallett Wastewater product line ensures effective disinfection of domestic and industrial wastewater with UVT as low as 35% to minimize pre-treatment requirements. As with all of our systems, the new Hallett W-models incorporate a unique vertical, non-contact design with dual air-mounted UV lamps in an elliptical-reflector reactor chamber to concentrate sterilizing UV energy on wastewater from 360 degrees. The quartz sleeve continually cleans itself with an automatic wiper that prevents the buildup of biofilm and mineral scaling. The Hallett design enables lamp changes to be completed without the risk of coming in contact with wastewater in the quartz sleeve, and in much smaller spaces compared to conventional light-in-a-pipe systems.

UV Pure is also launching a new Hallett Reuse product line for disinfection of reuse water and rainwater. These Hallett R-models will be validated to provide an effective UV disinfection dose for low-UVT water from greywater and rainwater collection systems, and other reuse water from commercial and industrial applications.

Hallett 1000R systems will be validated to meet the National Water Research Institute (NWRI) and EPA protocols for UV water disinfection for UVT as low as 35%. This level of treatment assures public health protection under challenging conditions and significantly outperforms many conventional UV systems, which are often rated effective only for cleaner water with UVT above 75%.

New Hallett systems are still powered by UV Pure’s patented Crossfire Technology™

This technology features an automatic self-cleaning mechanism that continually removes minerals and biofilm from the quartz sleeve, thereby preventing fouling, maximizing UV dose delivery, and virtually eliminating the need for manual cleaning. Crossfire Technology also integrates multiple smart sensors that continuously monitor UV dose, lamp intensity, and net UVT for optimum performance.

The new Hallett systems will be launching at WEFTEC 2018.

  • RSVP today to attend one of our demo huddle sessions or
  • Visit us at booth #5548

Discover the NEW Hallett 1000: Smart new features, same trusted name

Operators can now virtually eliminate concerns about maintenance, active supervision, and performance reliability for on-site UV disinfection at commercial, industrial, and municipal water or wastewater plants up to 1 million US gallons per day (3,785 cubic metres per day). How?

UV Pure’s new Hallett™ 1000 systems have more capacity than ever, plus the performance, power, and smart technology you expect from UV Pure.

The new Hallett 1000 model builds on the success of UV Pure’s proven Hallett 30 system and patented Crossfire Technology™. This technology uses a unique elliptical reflector design with dual air-mounted lamps to deliver a high UV dose and target pathogens from 360 degrees.

New and improved features of the Hallett 1000

Longer lamp life:

Each Hallett 1000 unit is equipped with high-output, long-life low-pressure high-output (LPHO) amalgam UV lamps that are powered by a UL-certified pre-heat ballast with a soft start. This helps extend their operating life to provide maximum UV output for up to 12,000 hours, or approximately 16 months.

Larger capacity system, same reliable disinfection:

The new Hallett 1000 units can handle flow rates of up to 100 gpm (378 L/min) per unit while continuing to provide robust, reliable disinfection under the toughest conditions. For higher flow applications, multiple Hallett 1000 units are connected with a prefabricated pipe manifold to achieve flow up to 1 MGD (3,785 m3/day). This modular design provides built-in redundancy and ensures the highest level of protection since one or more Hallett systems can be shut down for service while others continue to operate.

Space-saving, easy-access vertical design:

The new Hallett 1000 systems incorporate a newly designed aluminum outer shell with side hinges that can easily be flipped open to access the internal components. This design even further reduces the Hallett installation space requirements on a wall or as part of a vertical-mounted manifold system, and allows operators to quickly change lamps without having to pull them from the fragile quartz tube.

Contact us to discuss how UV Pure’s new Hallett systems can help you meet your water disinfection needs.

How UV Pure added to the success of 2018 Solar Decathlon participant

Sole Canadian team in Chinese sustainable house competition adds UV Pure system to provide safe water.

A team of students, known as Team MTL, from McGill University and Concordia University recently participated in the 2018 Solar Decathlon, a competition that challenged participants to build a sustainable house using cutting-edge technologies.

The group, known as Team MTL, designed a house that uses a point-of-entry (POE) treatment UV disinfection system to treat the main water supply and protect residents from waterborne pathogens.

To ensure that they would never have to worry about water quality, the students wanted a UV disinfection system that provides a high level of safety for the water that is supplied throughout the house.

UV Pure donated a Upstream NC 15-50 disinfection system to support the experiential learning opportunities provided by the competition and improve the water quality of the main water supply.

The Upstream NC 15-50 system incorporates dual smart UV sensors that continually monitor UV lamp output and water quality, ensuring the highest level of treatment and public health protection. If either of these parameters does not meet the set specifications, the system will sound an alarm, notify the unit owner, and automatically shut down.


“We are grateful to UV Pure for supplying us with an Upstream NC 15-50 system for our home,” says Ben Wareing, Architecture Lead of Team MTL. “The system consistently provides a clean water supply to the house, ensuring the wellbeing of the inhabitants.”


Once treated with UV Pure’s disinfection system, the water is supplied to low-flow plumbing fixtures and appliances throughout the house such as the dishwater and washing machine.

This approach supports Team MTL’s water management strategy, which prioritizes conservation and reuse to help homeowners reduce potable water demand.

The 2018 Solar Decathlon took place in Dezhou, China from August 2 to August 19. A total of 48 universities from 10 countries around the world were represented in the 20 teams that competed in the Solar Decathlon.

At the end of the competition, teams were ranked in a number of categories, including: innovation, engineering, architecture, market appeal and communications.

Congratulations to Team MTL for placing first in the architecture, market appeal and communications competitions, and  third in the innovation and engineering competitions!

Team MTL

How to earn LEED points with rainwater harvesting

Are you considering LEED certification for a new building?

If so, a rainwater harvesting system with UV Pure disinfection can help you earn points across several categories for your green building project.

Disinfection before distribution is an important part of a rainwater harvesting system as it inactivates harmful microbial pathogens that can contaminate rainwater as its collected and conveyed to storage. UV Pure’s products are validated to provide an effective UV disinfection dose in water with UVT as low as 50%. This level of treatment assures public health protection under challenging conditions and significantly outperforms many conventional UV systems, which are often rated to be effective for cleaner water at UVT above 75%.

UV Pure systems can achieve this level of treatment because Crossfire Technology® incorporates:

  • a dual-lamp, reflective disinfection process that provides 2.4 times the dose of conventional light-in-a-pipe systems, and
  • targets pathogens from 360 degrees to eliminate shadowing.
  • Each unit is also equipped with a self-cleaning system that prevents fouling of the quartz sleeve from minerals and enables it to be effective in water 10 times harder than conventional systems.
  • The self-cleaning system eliminates the need for unit owners to shut down, disassemble and manually clean the quartz sleeve and avoids the use of potentially hazardous acid.

A rainwater harvesting system equipped with UV Pure disinfection can help you gain LEED points across several categories, including:

Indoor water use reduction (up to 6 points):

New buildings can earn points for reducing potable water demand indoors with alternative sources of water, including treated rainwater.

Outdoor water use reduction (up to 2 points):

New green building projects earn a point by installing an efficient landscape irrigation system that reduces the site’s potable water demand by 50% from the calculated baseline for a site’s peak watering month. New sites can also obtain an additional point by reducing the site’s water requirements by an additional 30% using alternative water sources such as rainwater.

Rainwater management (up to 3 points):

New buildings can receive points for reducing runoff and improving water quality with low impact development (LID) and green infrastructure (GI). By adding a rainwater harvesting system, building owners can treat and reuse rainwater onsite, which helps the site reduce its potable water demand.

To learn more about water credits for obtaining LEED certification, click here.

We look forward to having you contact us to discuss your challenging UV disinfection needs.