WEIDA’s RAINSAVER is an advanced rainwater harvesting system engineered to collect rainwater from rooftops and render it suitable for a broad spectrum of non-potable applications.
The RAINSAVER provides complete peace of mind to end-users, with water quality assured through an extensive range of both pre-storage and post-storage treatment solutions.
Our technical and sales teams work closely with architects, consultants, and engineers to provide customised design and specification support, ensuring optimal system performance that meets and exceeds client expectations.
Residential homes and high-rise buildings
Commercial complexes and shopping malls
Hospitals and healthcare facilities
Schools, colleges, and universities
Government and office buildings
Hotels and resorts
Industrial facilities and warehouses
Urban parks and recreational areas
Strong, Durable, & Lightweight – Molded polyethylene construction ensures easy installation, handling, and transport.
Leakproof – Seamless, single-piece construction to prevent leaks.
Food & Water Safe – Made from US FDA and SIRIM-compliant polyethylene for safe food and potable water contact.
Corrosion Resistant – No maintenance required to protect against rusting.
UV Resistant – RAINSAVER tanks are UV8-stabilised per MS1225 standards for long-lasting durability.
Multi-layer Construction – A black middle layer blocks sunlight to prevent algae growth, while the white inner layer reflects hygiene.
Nanoshield Antibacterial Option – The inner layer prevents harmful bacteria including E. coli and Staphylococcus, tested to JIS Z2801:2012 standards.
Effective Pre-Filters – First flush diverters remove the initial 20–80 litres of rainfall, while the FILTERMAX cyclone filter continuously clears leaves and sediments.
Bukit Batok Green Innovation Centre, COSY
PETRONAS Air Keroh, Melaka
EDMS Warehouse at Rawang, Selangor
Nilai Impian Apartment at Seremban, Negeri Sembilan
Premium Rubber Factory at Batu Caves, Selangor
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