- Encourage me not to take long showers, as suggested by my blogPal Reduce Footprints
- Provide greywater for my container garden.
In an ideal system, our entire building's greywater from all its apartments would be collected and reused systematically. Someday, all new buildings will have this feature but for now, showering with my garden is a practical first step.
P.S. it very slightly reduces my water bills. Going green can mean saving green as well!