Residential Rainwater Harvesting
Rainwater Management Solutions (RMS) helps homeowners turn rainwater into a sustainable, reliable resource. We look at water-use goals and collection potential, then size each system accordingly. Our systems are built to collect, store, filter and distribute water to the intended end use, whether that’s landscape irrigation, household non-potable needs or even potable use. We also work with light commercial properties, offering solutions that offset municipal water usage and reduce utility costs where feasible.
Common Residential Uses
Rainwater harvesting isn’t just for one purpose. A well-designed system can serve your entire home in ways that reduce your dependence on municipal water and lower your utility costs year-round. Your harvested rainwater can serve many purposes around the home:
- Toilet flushing
- Irrigation & landscape watering
- Vehicle washing
- Fire suppression
- Laundry
- Pool & pond filling
Potable Use*
Rainwater can be treated to drinking water standards for whole-home use, reducing reliance on municipal or well water.
The Benefits of Harvesting Rainwater at Home
It Saves You Money
The best thing about rainwater is that it’s 100% free. Every gallon of harvested rainwater that replaces municipal water represents direct savings on your utility bill. RMS can provide detailed Return on Investment (ROI) projections for homeowners who want to understand the long-term financial value of collecting and reusing rainwater including potential offsets to municipal water usage and stormwater fees.
It's a Sustainable Choice
Harvesting rainwater is a simple, meaningful way to reduce your environmental footprint. By collecting and reusing water that would otherwise run off your property, you help protect local waterways from contamination, conserve groundwater resources, and reduce overall demand on shared water supplies. It’s one of the most practical steps a homeowner can take toward a more sustainable lifestyle.
Full Range of System Components
A major component of RMS’s service offering is expert equipment and component selection, ensuring homeowners receive the ideal combination of pre-filters, tanks, pumps, treatment units, and accessories for their specific environment and water‑use demands. The company supplies a full range of system components, including rainwater pre‑tank filtration technologies, storage tanks, pumps, and water treatment systems, all curated to minimize maintenance and optimize performance. RMS incorporates the trusted WISY 4‑Step Process, which uses pre‑tank filtration to reduce particulates, promote oxygenation, and maintain a healthier water environment, ultimately lowering system maintenance and prolonging the life of pumps and filtration equipment downstream.
RMS also supports DIY‑friendly residential solutions, offering packaged components and educational guidance for homeowners who prefer to assemble or maintain their own systems. Whether a homeowner’s goal is landscape irrigation, household water reduction, drought resilience, or long‑term sustainability, RMS provides the technical expertise and curated components needed to build a durable, efficient rainwater harvesting system.
The WISY 4-Step System
We’ve identified the WISY 4-Step System as the gold standard for residential rainwater harvesting and we’re the exclusive North American distributor of the WISY product line.
Up to 95% of collected water reaches your storage tank when the system is properly sized, minimizing waste and maximizing efficiency.
- Pre-Tank Filtration: Removes rooftop debris before water enters storage
- Smoothing Inlet: Calms incoming water to prevent tank stirring and protect water quality
- Floating Filter: Draws the cleanest water from just below the surface
- Overflow Device: Safely manages excess water while keeping the tank protected
The Right System for Your Home
Rainwater harvesting can support a variety of water needs, from outdoor irrigation to household applications and water conservation. Understanding your intended end use helps us determine what makes the most sense for your home. From there, we assess your property’s rainwater collection potential and apply proven sizing methods and decades of experience to identify the tank size and system components that best suit your needs. Throughout the process, our team is available to answer questions and guide you through your options. The result is a system selected with your property and intended use in mind.
Comprehensive Rainwater Harvesting Solutions
Expert Consultation
- Roof catchment area and rainfall data
- Water demand and intended end uses
- Site conditions (above or below ground installation)
- Local codes and feasibility requirements
Sizing & Selecting Equipment
- Tank sizing using advanced software to ensure proper storage and overflow management
- Feasibility studies and full project specifications
- Retrofit design for existing homes
- Calculation of flow rate for pump and treatment equipment
Complete System Components
- Pre-tank filtration using the internationally recognized WISY Vortex Filter
- Storage tanks in above- or below-ground configurations
- Pumping systems
- Treatment equipment that includes particulate filtration, carbon filtration, and UV disinfection
Why Homeowners Trust RMS
- Over 100 years of combined industry experience
- Trusted experts in residential rainwater harvesting
- Exclusive North American WISY distributor
- High-quality products selected for reliable, long-term performance
- Expert guidance from consultation through system startup
- Solutions for both new construction and existing homes
Ready to Start Harvesting Rain?
Tell us a little about your project, and our team will use our sizing tools and expertise to recommend the right tank, filtration, and system components for your needs.
Explore Our Resources
Explore our technical expertise through our resource library of technical files & drawings.
Learning Center
Learn more about rainwater harvesting through our blogs, articles, workshops, and more.