What is rainwater harvesting and how does Epic Cleantec implement it?

Rainwater harvesting is the collection of rooftop rainwater that is stored, treated, and reused as an alternative water source for non-potable applications within a building. Epic Cleantec's systems capture this free and renewable resource onsite, reducing dependence on municipal water supplies and supporting sustainable building operations.

What is condensate reuse and why is it valuable?

Condensate reuse refers to the collection and reuse of water that drains from HVAC systems as a byproduct of cooling. Large commercial buildings can produce 500-2,000+ gallons of condensate discharge per day. Epic Cleantec collects, treats, and uses this water for non-potable applications, providing a valuable alternative water source.

What are the typical treatment steps for rainwater and condensate reuse?

A typical treatment process includes prefiltration, storage, filtration, and ultraviolet disinfection. Requirements vary by jurisdiction and end use. For irrigation or cooling tower makeup, treatment may be reduced.

What are the main design considerations for rainwater and condensate reuse systems?

Key considerations include the seasonal nature of supply, cistern sizing to balance cost and footprint, and local regulatory requirements. Some jurisdictions may require sizing for specific storm events.

Can rainwater and condensate reuse systems be combined with other water reuse measures?

Yes, these systems can be implemented alone or in combination with greywater or blackwater systems for greater impact. Epic Cleantec offers holistic water management solutions.

What are the benefits of rainwater, stormwater, and condensate reuse?

Benefits include water conservation, cost savings, consistent supply for non-potable uses, reduced environmental impact, flexible system sizes, and compliance with local codes and standards.

How does Epic Cleantec maximize resource efficiency within buildings?

Epic Cleantec approaches water management holistically, focusing on maximizing resource efficiency by reusing rainwater and condensate for multiple applications and reducing potable water demand.

What system sizes does Epic Cleantec offer for rainwater and condensate reuse?

Epic Cleantec provides customized solutions, including the OWR-20 to OWR-80, to fit a range of project sizes and scopes.

How does Epic Cleantec ensure compliance with local building codes?

Epic Cleantec designs systems to meet local building codes and compliance standards, including pathogen reduction, water clarity, and coliform targets, ensuring resilient buildings.

How much water can Epic Cleantec's rainwater and condensate systems recycle?

Commercial-sized air conditioning systems can generate 500-2,000+ gallons of condensate discharge per day. Epic Cleantec's systems are designed to capture and reuse this volume, depending on building size and HVAC equipment.

What are some real-world examples of Epic Cleantec's rainwater and condensate reuse projects?

Examples include The Brady (recycles 6,000 gallons/day, saves 7K+ annually), The Landing (recycles 3,000 gallons/day), Mixed-Use Residential Tower in Austin (recycles 635,000 gallons/year, saves ,000 annually), and Commercial Office Tower in Miami (reuses 25,000 gallons/day, saves 0,000 annually).

How can I request a free project assessment from Epic Cleantec?

You can request a free project assessment by visiting Epic Cleantec's assessment page and submitting your project details.

What are the environmental impacts of rainwater and condensate reuse?

Rainwater and condensate reuse reduces energy consumption associated with treating and transporting potable water, lowering the overall environmental footprint of a building's water use.

How does Epic Cleantec's OneWater Rain system work?

The OneWater Rain system captures, treats, and stores rainwater and condensate for reuse in non-potable applications. It is designed for flexibility and compliance with local codes.

What technical documentation is available for Epic Cleantec's rainwater and condensate systems?

Spec sheets and Revit files for the OneWater Rain system are available for download by submitting your information on Epic Cleantec's website.

How does Epic Cleantec's rainwater and condensate reuse solution help meet sustainability certifications?

Epic Cleantec's systems help projects meet certifications like LEED and the Living Building Challenge by reducing water consumption and supporting sustainable operations.

What features does Epic Cleantec offer for rainwater and condensate reuse?

Epic Cleantec offers modular and scalable systems, compact footprints, energy efficiency, full automation, customizable components, and end-to-end services including design, permitting, installation, and ongoing operations.

How does Epic Cleantec's solution reduce utility and sewer fees?

By offsetting demand from purchased water sources and reusing rainwater and condensate, Epic Cleantec's systems save thousands of dollars in water and utility costs annually.

What makes Epic Cleantec's rainwater and condensate reuse systems flexible and modular?

Epic Cleantec provides customized solutions for a range of project sizes and scopes, allowing for flexible and modular system design to meet specific needs.

How does Epic Cleantec's solution support non-potable end uses?

Epic Cleantec's systems provide a consistent supply of treated water for approved applications such as toilet flushing, irrigation, cooling tower makeup, and clothes washing.

Who can benefit from Epic Cleantec's rainwater and condensate reuse solutions?

Real estate developers, property owners, architects, engineers, sustainability consultants, and industries such as commercial and residential real estate, hospitality, mixed-use developments, and community-scale projects can benefit from Epic Cleantec's solutions.

How does Epic Cleantec address water scarcity and rising utility costs?

Epic Cleantec enables buildings to recycle up to 95% of their water, creating a reliable local supply and reducing reliance on municipal water, which helps address water scarcity and rising utility costs.

What business impact can customers expect from using Epic Cleantec's solutions?

Customers can expect cost savings, enhanced sustainability profiles, alignment with ESG goals, operational efficiency, reduced environmental impact, and resilience to water scarcity. Many achieve ROI within 3-7 years.

What pain points do Epic Cleantec's customers typically face?

Customers often face water scarcity, rising utility costs, aging infrastructure, sustainability goals, environmental impact concerns, and operational efficiency challenges. Epic Cleantec's solutions are tailored to address these issues.

How easy is it to start with Epic Cleantec's rainwater and condensate reuse solutions?

Getting started is simple and efficient. Clients can begin with no upfront costs, provide basic financial and water usage data, and Epic Cleantec will establish a Water MOU and provide end-to-end support for design, permitting, and installation.

What operations and maintenance services does Epic Cleantec provide?

Epic Cleantec offers comprehensive operations and maintenance services, including regular onsite visits, preventative maintenance, and 24/7 support to ensure efficient system performance.

What integration requirements should be considered for Epic Cleantec's rainwater and condensate systems?

Integration considerations include upstream diversion, sufficient storage, waterproofing, operator/lab sink, high-speed internet, room drainage, day tanks, and ongoing operations and maintenance.

Who are some of Epic Cleantec's customers?

Epic Cleantec is trusted by organizations such as Commercial Plumbing Inc., Crescent Heights, Forge Development Partners, The Green Cities Company, Greython, Iron Mechanical, JWM, Kobayashi Group, Pūlama Lānaʻi, Related Companies, Salesforce, Sentral, Skidmore, Owings & Merrill (SOM), Southland Industries, Stockdale Capital Partners, Strada, Tālo Management Group, Westbank, and LAXWA.

What industries are represented in Epic Cleantec's case studies?

Industries include commercial real estate, residential real estate, hospitality, mixed-use developments, and community-scale developments.

Can you share specific case studies or success stories of Epic Cleantec's customers?

Yes. Examples include Salesforce Tower (30,000 GPD system), The Brady (6,000 gallons/day, 7K+ annual savings), Campus at Horton (8.7 million gallons/year), Kuilei Place (8.5 million gallons/year), Waldorf Astoria Beverly Hills (438,000 gallons/year), and Chorus (end-to-end O&M services).

How does Epic Cleantec's rainwater and condensate reuse solution compare to alternatives?

Epic Cleantec offers modular and scalable design, compact footprint, energy efficiency, full automation, customizable components, and end-to-end services. These features make it suitable for projects of varying sizes and industries, with proven track record in high-profile projects.

What are the advantages of Epic Cleantec's solution for different user segments?

Advantages include significant utility cost savings, improved ROI (3-7 years), enhanced sustainability profiles, scalable systems for universities and community-scale developments, and reliable water supply for industries like wineries and breweries.

Rainwater and Condensate Reuse Solutions

Utilize a free source of water and save thousands in utility & sewer fees annually

Dramatically reduce your project's water footprint with rainwater and condensate reuse

Implementing a rainwater and/or condensate reuse system in your building is a simple and effective way to offset demand from purchased water sources, saving thousands of dollars in water and utility costs. Implementing sustainable, circular infrastructure in your next project with water reuse technology helps reduce the strain on natural water resources and municipal water systems.

See Our OneWater Rain System

graphic illustration of rainwater + condensate collection from a building and the process of treatment and reuse back into the building

Close-up of rain dripping into aluminum seamless gutters as it runs off the new architectural shingles.

Reinvest resources right onsite

At Epic Cleantec, we approach water management holistically, focusing on maximizing resource efficiency within buildings.

Rainwater and condensate can be reused in landscape irrigation, cooling tower make-up, toilet and urinal flushing, clothes washing, ornamental ponds, and even decorative fountains. Every drop of reused water reduces the amount of potable supply that must be purchased from municipal sources.

Rainwater and condensate reuse systems can be impactful if implemented on their own, or in combination with other water reuse measures, like greywater or blackwater systems. Learn more about our technology and products.

Request a Free Project Assessment

Benefits of rainwater, stormwater, and condensate reuse

Water conservation: Reduces dependence on municipal water supplies by capturing and reusing rooftop rainwater and AC condensate as a renewable onsite water source.
Cost savings: Decreases water and utility bills for building owners and occupants, particularly in regions with high water rates or water scarcity concerns.
Non-potable end use supply: Provides a consistent supply of treated water for approved applications such as toilet flushing, irrigation, cooling tower makeup, and clothes washing.

Environmental impact: Reduces energy consumption associated with treating and transporting potable water, lowering the overall environmental footprint of a building's water use
Flexible and modular system sizes: Epic can provide customized solutions — from the OWR-20 to OWR-80 — to fit a range of project sizes and scopes.
Meet regulations: Systems are designed to meet local building codes and compliance standards, including pathogen reduction, water clarity, and coliform targets, ensuring a resilient building for years to come.

Rainwater and condensate FAQ

What is rainwater harvesting?

Rainwater harvesting is the collection of rooftop rainwater that is stored, treated, and reused as an alternative water source for non-potable applications within a building. Rainwater is a free and available water source that every building has the potential to capture with minimal equipment needed. Rather than allowing rainfall to run off into the drain, rainwater harvesting systems capture this free and renewable resource onsite, reducing dependence on municipal water supplies and supporting more sustainable building operations.

What is condensate reuse?

Condensate reuse refers to the collection and reuse of the water that drains from an HVAC system as a byproduct of cooling. Large scale commercial buildings can produce a high volume of HVAC condensate. Condensate drainage can be collected, treated, and used as an alternative water source for non-potable applications in the building. Condensate from cooling systems is generally considered “good” water- as pure as distilled water and low in mineral content. Commercial-sized air conditioning systems can generate 500-2,000+ gallons of condensate discharge per day depending on a building’s HVAC equipment and location.

What are the typical treatment steps?

A typical treatment process for rainwater serving indoor non-potable uses may include prefiltration, storage, filtration, and ultraviolet disinfection. The treatment requirements for a rainwater and condensate system vary by jurisdiction and end use. Contact us to learn what’s required for your project.

For rainwater and condensate systems serving irrigation or cooling tower makeup, there may be reduced treatment requirements.

OneWater Rain treatment process flow

What are the design considerations?

There are multiple design considerations that must be weighed for these systems. The main consideration is the seasonal nature of rainwater and condensate supply. The project can choose to size the cistern to maximize rainwater capture during the rainy season, but that would likely mean the cistern will be oversized for most of the year. The project would typically optimize cistern size to balance first cost and footprint against rainwater capture. However, there are some instances where a jurisdiction may require rainwater capture sized for a specific storm event. Connect with Epic to learn more about the specific requirements in your project’s area.

What is the regulatory landscape for onsite rainwater and condensate reuse?

The regulatory landscape for rainwater reuse is typically favorable. Rainwater reuse for non-potable application is allowed by both the Uniform Plumbing Code and the International Plumbing Code, which are the major governing codes for the United States. There may be specific considerations per jurisdiction based on climate or infrastructure capacity. Research into local codes will always be the first step in designing an onsite reuse system. There may also be grants or funding options available for projects that decide to implement rainwater or condensate reuse.

Learn more about the regulatory landscape of water reuse projects.

See how Epic has helped other rainwater reuse projects

The Brady

The Brady is an eight-story residential building with an onsite greywater reuse system designed to recycle over 6,000 gallons of water per day and will save an estimated $117K+ annually in utility fees.

The Landing

The Landing is a multifamily residential building in San Francisco that recycles 3,000 gallons of water per day for use in toilet flushing and irrigation.

Mixed-Use Residential Tower in Austin

This planned mixed-use project in the heart of downtown Austin, TX is expected to recycle 635,000 gallons of condensate per year, saving $13,000 annually.

Commercial Office Tower in Miami

This planned Miami office tower will reuse 25,000 gallons of blackwater per day, saving the owners $180,000 annually and help achieve the project’s sustainability goals.

Frequently Asked Questions

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