Rainwater Recycling System for Non-Potable Reuse

A rainwater recycling system captures runoff, removes debris, stores the treated flow and supplies it for approved non-potable uses. These interconnecting PP modules form the underground storage section, allowing the tank volume and shape to suit the catchment, demand and available site footprint.

Module Specifications

ItemSpecification
TypeRainwater collecting module
Brand / originLEIYUAN / Fujian, China
Material / colorPP / black
Module size680 × 410 × 450 mm
Nominal volume0.125 m³ per module
Modules per m³8
Weight8 kg per module
Working temperature−30°C to +120°C
Compressive strength25 tonnes/m²
HS code / quality system3925900 / ISO 9001:2008

From Collection to Reuse

The storage modules are one part of the complete recycling process. Roof or surface runoff first passes through suitable pretreatment and filtration before entering the sealed tank. A pump and dedicated non-potable distribution line can then supply irrigation, toilet flushing, site cleaning or other uses permitted by local regulations. Overflow control protects the system during larger storms.

PP storage module used in a rainwater recycling system

Underground rainwater recycling tank assembled from modules

Design Priorities

For reuse projects, capacity should be based on catchment yield, daily demand, seasonal rainfall and the acceptable backup-water frequency. Water quality treatment depends on the source and intended use. The civil and structural design must also address excavation conditions, burial depth, surface loading, backfill, inspection access and maintenance.

Interconnecting structure of a PP rainwater recycling module

Installation Overview

Prepare the base, assemble the interconnecting modules and wrap the structure with a sealed geomembrane. Fit the specified inlet, outlet, overflow, ventilation and inspection points before backfilling. Pretreatment should be accessible for routine cleaning, and pumps and controls should be selected for the required flow and delivery pressure.

Installation guide for an underground rainwater recycling system

Packing Reference

ComponentPacking
680 × 410 mm section8 pcs per bundle
450 × 410 mm section10 pcs per bundle
20 ft GP referenceApproximately 90 m³ by bundle

Packing for PP rainwater recycling tank modules

Information Needed for a Proposal

Provide the catchment area, rainfall data, intended reuse demand, target tank volume, site footprint, burial depth, surface load and delivery destination. This information supports preliminary module quantity and layout review.

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