BETTER WATER. TOGETHER.
Industrial & Municipal Water Treatment Equipment and Systems
We’re a full-service water treatment equipment supplier, offering engineering and design services, custom turn-key equipment, certified NSF/ANSI 61 media filtration systems, rapid response PFAS removal, a diverse rental fleet, new OEM equipment, manufacturing, refurbishing, and services such as plant optimization and membrane cleaning.
High-Efficiency, High-Recovery Reverse Osmosis Systems
Industrial PFAS Treatment Systems
We provide end-to-end PFAS treatment solutions that help municipalities and industrial facilities respond quickly to evolving regulations and protect public health. From testing and technology selection to rental and permanent treatment systems, we deliver site-specific solutions designed to remove PFAS efficiently and reliably.
Brands
SEE OUR EQUIPMENT BRANDS
Rental
EXPLORE OUR RENTAL FLEET
Surplus
BROWSE OUR SURPLUS EQUIPMENT
Engineering
EXPLORE OUR ENGINEERING SERVICES
Services
EXPLORE OUR SERVICE SOLUTIONS
Innovation
DISCOVER OUR INNOVATION CENTER
SELL TO US
More Than Thirty-Five Years of Investment Recovery
We buy and redeploy used, overstock, and idle industrial water treatment equipment, giving you a fast path to recover value from surplus assets.
Featured Assets
Learn more about our custom industrial water treatment solutions.
PROVEN IN THE FIELD
When saltwater intrusion threatened drinking water supplies in 2023, WaterSurplus mobilized emergency RO treatment to keep communities supplied with clean water.
FREQUENTLY ASKED QUESTIONS
What types of water treatment equipment do you offer?
We offer new and surplus reverse osmosis systems, PFAS treatment systems, filtration equipment, and wastewater treatment equipment. This includes equipment we design and manufacture ourselves, such as ImpactRO and our OxiPlus media line, as well as products from leading manufacturers in the industry. Equipment is available for purchase or rental, depending on your project needs.
When should I rent vs. buy water treatment equipment?
Renting makes sense when you need capacity fast, such as during an emergency, a seasonal spike, or while a permanent system is being designed and built. Buying is the better fit for a long-term, permanent installation. We support both paths, and a rental can be converted into a purchase later if your situation changes, so you’re not locked into a decision before you have full information.
Do you offer mobile water treatment equipment?
Yes. Our rental fleet includes mobile filtration, reverse osmosis, and wastewater treatment equipment, deployed as trailers, containerized units, or skidded systems. These are built for emergency and temporary needs, from natural disasters to unplanned equipment failures, and can be installed individually or combined into complete systems depending on your site.
Do you offer PFAS treatment?
Yes. We offer PFAS Rapid Response rental systems that deliver clean water quickly while a permanent solution is designed, as well as custom-engineered, permanent PFAS treatment systems. Our team can guide you from initial testing and technology selection through full regulatory compliance.
How does the surplus equipment marketplace work?
We buy used, overstock, and idle industrial water treatment equipment, then inspect, refurbish, and resell it through our marketplace. This gives sellers a way to recover value from equipment they no longer need, and gives buyers access to reliable, ready-to-run equipment at a lower cost and shorter lead time than new.
The WaterSurplus Philosophy
The recruiting of subject-matter experts to the ranks of WaterSurplus has driven our careful expansion over the decades and remains our key to success in the future. While satisfied customers frequently ask us to help them address ever more complex water treatment needs, we only proceed when we have the human capital in place and ready to go. Our collaborative and innovative business model only works because of the commitment of our team to find or develop optimal solutions to our customer’s needs.
Customers tell us that the reason they keep coming back is that we deliver superior value with every project. From innovative treatment solutions to brand-agnostic supply recommendations and investment recovery, our subject-matter experts listen to the needs of our customers, probe for information that will help them make the strongest possible recommendation, and then trust our customers to make the right decision for their needs. With access to the top brands in the world, our own innovative solutions, and the widest selection of top-quality surplus equipment, our customers know that we will help them find the very best solution.
Advancing sustainability has been a core part of our philosophy at WaterSurplus since the beginning. Be that by pushing the boundaries of water recovery in reverse osmosis, developing systems that require significantly fewer antiscalant chemicals, recycling and/or refurbishing equipment, membrane elements, and resin, or licensing catalytic filtration media that require half the footprint of a traditional media system. Our expert team is continually seeking (and finding) value for our stakeholders while pursuing more sustainable processes.
