Rainwater Harvesting Filter

What Does a Complete Rainwater Harvesting System Need?

Collecting rainwater from a rooftop requires two things working together: a gutter system that channels water efficiently from the roof surface without spillage or overflow, and a filter that removes leaves, dust, debris, and contaminants before the water enters storage. Without both, the collection system either loses water through overflow or stores contaminated water that is unsuitable for reuse. Supreme's rainwater harvesting range covers both requirements through the Rainbow Roof Gutter System and the Raingain rainwater filter system, giving residential, commercial, and industrial projects a verified, end-to-end rainwater harvesting pipes and filtration solution under one manufacturer.

How Does the Rainbow Roof Gutter System Work?

The Rainbow roof gutter system is manufactured from high-grade PVC and conforms to EN 607, the international standard for thermoplastic gutters and their fittings. The 150mm gutter profile is designed to handle rainwater from roof areas up to 310 sqm using a single 110mm circular downpipe, eliminating spillage or overflow risk under standard rainfall conditions. The system uses longitudinal ribs for structural strength and dimensional stability, and is supplied with specially designed rubber seals that create totally leak-proof joints. Unlike half-cut gutter profiles, Rainbow is engineered to carry maximum flow with no possibility of spillage. The rainwater roof gutter system is suited for all types of sloped roof buildings including residential homes, commercial premises, industrial facilities, garages, and garden shades.

How Does the Raingain Rainwater Harvesting Filter Work?

The Raingain rainwater filter operates on the principles of gravity, cohesive force, and centrifugal force, requiring no external power source for operation. Rainwater entering the filter passes through a stainless steel mesh strainer that removes leaves, dirt, debris, and suspended solids before clean water passes through to storage or groundwater recharge. The filter unit has more than 90% filtration efficiency and includes a self-cleaning mechanism that automatically removes suspended solids without manual intervention. Raingain is available in 180mm and 355mm sizes, suitable for roof areas up to 2500 sqft, and complies with CGWA guidelines for rainwater harvesting systems. The filter is designed for use with both pvc pipe filter for rainwater harvesting setups and HDPE downpipe connections. For a complete understanding of how rainwater harvesting works and how to set up an effective system for your property, read our detailed guide on everything you need to know about rainwater harvesting.

Also Read: Everything you need to know about rainwater harvesting

Why Choose Supreme for Rainwater Harvesting?

Supreme's rainwater harvesting filter and roof gutter system cover every stage of a rooftop collection system from initial channelling through filtration to storage or groundwater recharge. The Rainbow gutter conforms to EN 607. The Raingain filter complies with CGWA guidelines and delivers over 90% filtration efficiency with a self-cleaning stainless steel mesh. Together they form a complete, low-maintenance rainwater collection and filtration system for residential, commercial, and industrial applications across India.