Rainwater Harvesting Process Flow

Rainwater Harvesting Process Flow

Rainwater harvesting (RWH) is a smart and sustainable method to collect, filter, and reuse rainwater while recharging groundwater levels. A properly designed system ensures efficient water management and long-term savings.

Step-by-Step Process

1. Rooftop Collection
Rainwater is collected from rooftops and surface areas, acting as the primary source of clean water.

2. Conveyance System
Water is carried through pipes and gutters with proper slope, ensuring smooth flow without leakage or stagnation.

3. First Flush System
The initial dirty rainwater is diverted to remove dust, debris, and contaminants.

4. Filtration Unit
Water passes through layers of sand, gravel, and mesh to remove impurities and improve quality.

5. Storage / Recharge System
Filtered water is either stored for reuse or directed into recharge pits and borewells.

6. Groundwater Recharge & Reuse
Water percolates into the ground, replenishing aquifers and ensuring long-term water availability.

Key Benefits

• Conserves water
• Recharges groundwater
• Reduces water bills
• Supports sustainability
• Ensures long-term water security

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