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Benefits of rainwater harvesting

Short answer

Rainwater harvesting supplements water supply, reduces dependence on piped/tanker water, recharges groundwater, lowers stormwater runoff and urban flooding, provides soft, low-salt water for washing and gardening, and is simple and cheap to install and maintain. It saves water and energy costs.

What are the benefits of rainwater harvesting?

  • Supplements the water supply, reduces dependence on piped supply and tanker water, and cuts water bills.
  • Recharges groundwater and raises the water table.
  • Reduces storm runoff, urban flooding and soil erosion.
  • Rainwater is soft and low in salts, so it is good for washing and gardening and, after treatment, for drinking.
  • Simple, cheap and easy to maintain; can be used anywhere.

✓ Answer checked by Claude Opus 5.5 (high effort)

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