Introduction

India is entering a phase where water security is no longer optional—it is a survival necessity. While borewells go deeper and tanker costs rise, one resource still arrives free at every roof: rainwater. The real question is not “Is rainwater enough?” but “Are we capturing it efficiently and safely?”

RPV Wisy, the Indian wing of WISY Germany, has spent more than a decade answering this question with advanced, certified rainwater harvesting filters designed for Indian conditions. With systems trusted in 40+ countries, the focus is simple: transform every roof into a reliable source of pure, usable water.

Why German-Engineered Filters Matter

Not all rainwater filters are built alike. Many conventional systems clog, demand frequent cleaning, or let fine particles pass into the tank.

WISY’s German-engineered vortex fine filters take a different approach:

• Maintain a constant pipe cross-section so there is no bottleneck, even during heavy cloudbursts.
• Use high-grade stainless-steel mesh (as fine as 0.28 mm) to remove leaves, moss, and fine suspended particles.
• Achieve high hydraulic efficiency, ensuring over 95% of rainwater is filtered and collected in typical rainfall.​

For Indian customers, this means more usable water, less maintenance, and a system that keeps performing year after year.

Call to action

If you are planning a new building or upgrading an existing one, now is the right time to turn your roof into a dependable water source.

Reach out to the RPV Wisy team to discuss your project, roof area, and water requirements, and get a customised system design using proven German-engineered filters.

• Phone: +91-81223 00301
• Website: rpvwisy.com