Rainwater Pumps

Rainwater Pump Solutions Backed by Industry Leaders

Why RMS Partners with the Best

At RMS, we believe that exceptional performance starts with exceptional partnerships. That’s why we work exclusively with the industry’s most reputable pump manufacturers. These collaborations ensure every rainwater pumping system we deliver meets the highest standards of reliability, efficiency, and performance. By leveraging proven engineering and cutting-edge technology, we provide solutions that stand the test of time.

Benefits of Partnering with RMS

Unmatched Reliability

Every pump is sourced from trusted manufacturers with proven track records.

Tailored Solutions

Standard and custom configurations to fit your exact project specifications.

Long-Term Value

Systems designed for durability, efficiency, and reduced lifecycle costs.

Expert Guidance

Our team works closely with you to ensure seamless integration and optimal performance.

Comprehensive Product Options

Our offerings cover a wide range of applications, ensuring you have the right pump for every project:​

End Suction & Flooded Suction Pumps

Built for robust performance in commercial and industrial environments, these pumps deliver consistent flow and durability.

Submersible Pumps with Cooling Jackets

Designed for demanding conditions, these pumps combine durability with thermal management for optimal operation. By using a manufacturer-approved cooling jacket, it allows the connection of floating filter intakes, a fundamental rainwater reuse step, to ensure the highest quality water in the cistern is pumped through the system.

Sump Pumps with Basin Packages

Complete systems for efficient water removal and containment, ideal for rainwater collection, stormwater management, and site water control.

Booster Pump Skids

Available in simplex, duplex, triplex, and fully custom configurations to meet varying pressure requirements. With a full-color touchscreen, these systems are easily configurable in the field making BMS integration and communication simple.

Recirculation Pumps

Engineered for continuous flow and system stability, ensuring smooth operation in complex systems.

Variable Frequency Drives (VFDs)

Deliver precise control, energy savings, and extended equipment life for maximum efficiency.

Key Considerations for Sizing & Selecting a Commercial Rainwater Pump

Choosing the right pump for a commercial rainwater system is critical for efficiency, reliability, and long-term performance. Proper sizing and selection ensure your system operates at peak efficiency while minimizing energy costs and maintenance.

Start by calculating the required flow rate based on peak demand and usage patterns. Consider simultaneous loads such as irrigation zones, restroom facilities, and equipment needs. Accurate flow calculations prevent undersized or oversized pumps, ensuring optimal performance.

TDH combines static lift, friction losses in piping and fittings, and the pressure required at the point of delivery. A precise TDH calculation helps select a pump that operates near its Best Efficiency Point (BEP), reducing energy consumption and extending equipment life.

Ensure that available NPSH exceeds the pump’s required NPSH to prevent cavitation, which can damage the pump and reduce performance. This is especially important for submersible and booster applications.

Consider water temperature, viscosity, solids content, and chemical composition. These factors influence pump material selection such as stainless steel, plastic, or rubber-lined components to resist corrosion and wear.

Centrifugal pumps are ideal for clean, low-viscosity fluids, while positive displacement pumps suit high-viscosity or precise flow applications. Matching pump type to system requirements ensures efficiency and reliability.

Modern systems often include VFDs for speed control, energy savings, and reduced wear. VFDs allow pumps to adapt to changing demand, improving efficiency and system longevity.

Beyond initial cost, evaluate maintenance and energy consumption to ensure the most cost-effective solution. Pumps operating near BEP with premium efficiency motors deliver long-term savings.

Ensure adequate space for servicing, proper piping accessories, and compliance with industry standards and local codes. Planning for future growth and redundancy is vital for high-rise or mission-critical systems.

Why Choose RMS

When you choose RMS, you’re not just buying a pump, you’re investing in a complete solution backed by industry leaders. From design to commissioning, we ensure every detail aligns with your goals for performance, efficiency, and sustainability.

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.

Have Questions? Our Team of Experts Can Help

Questions?

Contact Our RMS Experts Today

Let RMS help you determine how a commercial or residential rainwater collection system can help you save money and protect our most valuable natural resource. Our team is ready to answer any questions you have and help you find the right solution.

(866) 653 – 8337

Virginia Headquarters
2550 Shenandoah Ave NW
Roanoke, VA 24017

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