What is a greywater recycling system?

Greywater recycling is the process of treating and reusing lightly used household wastewater from bathroom sinks, showers, baths, and washing machines for non-potable purposes like toilet flushing, garden irrigation, and floor washing. It excludes blackwater (toilet waste) and kitchen grease water.

How Greywater Recycling Works

  • Greywater is collected from baths, showers, and laundry drains.
  • Passed through a filtration and treatment unit (physical, biological, or UV).
  • Treated water is stored in a secondary tank.
  • Redistributed for toilet flushing, irrigation, or car washing.

Smart Greywater System Features

  • Automated filtration cycles with app monitoring.
  • Water quality sensors to ensure safe reuse standards.
  • Smart valves to divert to drain if water quality is below threshold.
  • Usage tracking to quantify water savings.

Greywater recycling is a practical and eco-responsible water management solution that significantly reduces a home's freshwater footprint. As water scarcity intensifies in Indian cities, greywater systems will become a key feature of sustainable residential projects.

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