4 Smart Ways to Reuse RO Reject Water at Home
S
Smart RO Expert March 17, 2026
Save Water, Save the Planet
It is a known fact that RO purifiers reject some water to flush out the toxic salts and impurities. However, in cities facing water scarcity, letting this water go down the drain is a waste. Here are smart ways to reuse RO reject water:
- 1. Mopping the Floor: The high salt content in reject water actually makes it great for cleaning tiles and mopping floors.
- 2. Watering Plants: While not good for sensitive indoor plants, RO waste water can safely be used for watering outdoor shrubs, lawns, and hardy garden plants.
- 3. Flushing Toilets: Collect the reject water in a bucket and use it to flush your bathroom toilets, saving liters of fresh water daily.
- 4. Washing Cars and Bikes: Use this water for the initial muddy wash of your vehicles (just remember to give a final rinse with fresh water to avoid salt spots).
Small steps make a big difference. Let's pledge to use water responsibly!