Underground Rainwater Debris Interceptor Pit with Removable Stainless Steel Filter Basket for Stormwater Harvesting

Product Overview

Our Rainwater Debris Interceptor Pit serves as the critical first-line defense for commercial and municipal rainwater harvesting networks. Rainwater collected from roofs, roads, or green spaces often carries heavy loads of organic debris like twigs, leaves, and plastics. This device mechanically intercepts solid waste at the inflow point, allowing only screened water to proceed to storage tanks or infiltration cells, thereby eliminating downstream pipe blockages and tank silting.

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Working Principle & Architecture

The unit features an intuitive, gravity-fed hydraulic design that requires zero power consumption to operate:

• Inflow & Interception: Stormwater surges through the main horizontal inlet port and is directly channeled into the deep cylindrical stainless steel mesh cylinder.
• Debris Separation: The tight stainless steel weave traps solid pollutants, leaves, and litter inside the inner hanging basket while letting water freely pass through horizontally.
• Clean Outflow: Screened, sediment-reduced water exits through the opposite discharge outlet into the storage tank or municipal drain network.
• Easy Maintenance: Solid waste settles vertically into the reinforced lower basket. Maintenance crews can quickly lift the top cover and pull out the basket using its heavy-duty handle for instant cleaning.

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Key Features & Technical Advantages

• Dual-Layer Stainless Steel Filtration: Features a robust cylindrical screen paired with a heavy-duty vertical lift-out basket to capture fine and coarse debris simultaneously.
• Corrosion-Proof HDPE/PP Housing: The outer structured well is injection-molded from specialized high-density polymers, ensuring it resists heavy underground soil pressures, vehicle vibrations, and biological corrosion.
• Excellent Hydraulic Flow Capacity: Large cross-sectional internal volume ensures minimal inline head-loss and prevents back-ups even during peak torrential rain storms.
• Modular Invert Configurations: Inlet and outlet ports can be easily adapted to standard PVC or HDPE drainage pipe diameters for fast job-site plumbing.

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Technical Specifications

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Typical Application Fields

• Eco-Friendly Sponge Cities: Integral components for urban green spaces, municipal swales, and rain gardens.
• Commercial Rainwater Re-use: Pre-filtration for office complexes, schools, and warehouse rooftop collection setups.
• Agricultural Runoff Management: Collects and screens pond-bound stormwater for clean farm irrigation storage.

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