Our high-quality sump pumps and backup systems can dependably protect your home and keep you and your family safe and dry.
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Sewage or grinder pumps move raw sewage and unwanted water away from the home. Our pre-plumbed packages make selecting and installing the right equipment easy.
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Install a sink drain anywhere without breaking concrete. Use our drain pumps for easy installation in areas without gravity drainage.
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Pumps for Residential Irrigation
Flint & Walling offers a selection of reliable water pumps and systems designed to help you maintain lush lawns and vibrant gardens. Browse our catalog to find the product that suits your needs.
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Revitalize your fields and livestock with quality water solutions.
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Flint & Walling has a selection of submersible pumps and jet pumps designed with robust components to deliver superior performance across a range of applications.
Learn MoreElevate the appearance of parks, golf courses, and residential communities with decorative fountain pumps that combine stunning visual displays with continuous water circulation for improved water quality and aesthetics.
Learn MoreUnwanted water and raw sewage are pumped to an outside basin. Sewage lift station pumps take this wastewater up and away.
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Effluent lift stations collect and pump the grey water or effluent from commercial facilities or wastewater treatment systems.
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During storms, excess water can lead to flooding, pollution, and damage. We offer a range of pumps, containers, and controls to manage your stormwater effectively.
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When sanitary sewers are not available, septic systems are used to treat wastewater before disposal.
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Add a full or half bathroom to an area without gravity drainage by using our upflush toilet systems to avoid breaking concrete.
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Designed for cleaning and maintaining tankless water heaters, the Scale Removal System efficiently circulates descaling solutions to remove mineral deposits and scale buildup. Regular flushing helps improve system efficiency, maintain consistent hot water performance, and extend equipment life.
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Crawl spaces get damp, leading to mold and structural damage. Our sumps manage moisture, preventing these issues.
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Ideal for draining swimming pools, hot tubs, basements, and other areas, our portable dewatering pumps are affordable and easy to transport or store.
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Elevator sump pumps prevent environmental contamination before it starts by stopping the pump at the appropriate time with our oil smart system.
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Remove condensation from air conditioning equipment, condensing furnaces, dehumidifiers, ice makers, water coolers, and refrigeration systems when gravity flow is not an option.
Learn MoreA selection of submersible pumps and jet pumps designed with robust components to deliver superior performance across a range of applications.
Learn MoreThough pumps are at the heart of what we do, they often require additional controls or frequency drives for optimal performance.
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From pressure boosting to maintaining constant pressure or regulating pressure, our range of water pressure booster pumps offer tailored solutions to tackle any challenge effectively.
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Our tailored products ensure livestock comfort by providing reliable water supply solutions specifically designed for use in poultry houses and livestock environments
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A car wash cannot perform efficiently with low water pressure. These products are a great solution for these applications where you need high and consistent pressure.
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Designed for the demanding needs of commercial applications, these pump systems and packaged solutions provide reliable water and wastewater management, helping facility managers maintain uninterrupted operations and long-term peace of mind.
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Our hazardous duty explosion-proof effluent and sewage pumps are rated for Class 1, Division 1, Groups C & D or Class 1, Zone 1, Groups IIA & IIB. Every pump is submerged in water and tested at the factory to ensure that it performs as expected when you receive it.
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Designed for residential and community wastewater collection, low pressure sewer systems provide dependable wastewater transport, offering flexibility for difficult terrain, longer distances, and expanding developments.
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Engineered for the demands of municipal operations, these pumping systems deliver dependable wastewater and stormwater management to support growing communities and critical public infrastructure.
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Enhance water pressure effortlessly with our advanced booster pumps, ensuring consistent and powerful flow for your needs.
Optimize irrigation and turf maintenance with our reliable pumps, designed for efficient water distribution and turf care.
Recirculating Media Filter
- Better-than-secondary effluent quality — Proven performance for high-standard wastewater treatment.
- Scalable & customizable — Treats from 450 to 36,000+ gallons per day with flexible sizing for any project.
- Low maintenance, high reliability — Engineered for long-term durability with minimal upkeep.
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Zoeller® Recirculating Media Filters (RMF) provide proven, below-grade wastewater treatment for residential, commercial, and small community applications. Using aerobic organisms and gravel media, RMFs produce better-than-secondary quality effluent with minimal maintenance. Available in capacities from 450 to 36,000+ GPD, with customizable sizing to meet site-specific needs.
Have a question? Give us a call!
877-710-7867
Zoeller® Recirculating Media Filters (RMF) provide proven, below-grade wastewater treatment for residential, commercial, and small community applications. Using aerobic organisms and gravel media, RMFs produce better-than-secondary quality effluent with minimal maintenance. Available in capacities from 450 to 36,000+ GPD, with customizable sizing to meet site-specific needs.
Product Details
Zoeller® Recirculating Media Filters (RMF) are engineered for decentralized wastewater treatment systems where high-quality effluent is required. Designed for residential, commercial, and small community use, RMFs treat septic tank effluent through a below-grade filtration process using 3/8-inch pea gravel media. This media supports aerobic organisms that biologically digest nutrients as the fluid trickles through the pore spaces.
Effluent exits through an outlet pipe at the bottom of the filter, with 80% recirculated for additional treatment and 20% directed to final disposal—typically via drip irrigation or other soil absorption methods. The system is scalable, with individual units treating from 450 to over 36,000 gallons per day. Multiple filter beds can be installed for larger projects, and custom configurations are available to meet specific hydraulic and organic load requirements.
RMFs are known for their reliability, low maintenance, and ability to produce better-than-secondary quality effluent. They are ideal for sites with poor soil conditions or limited access to municipal sewer systems. With proper design, installation, and maintenance, RMFs offer a long-term, environmentally sound solution for wastewater treatment.
Features and Benefits
- Produces effluent that exceeds secondary treatment standards
- Uses 3/8" pea gravel media—more dependable than sand for biological filtration
- Modular design allows multiple filter beds for larger installations
- Custom configurations available to meet site-specific hydraulic and organic loads
- Ideal for residential, commercial, and small community applications
- Includes design assistance and support from Zoeller Pump Company
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