learn.howToCalculate
learn.whatIsHeading
Gray water reuse captures wastewater from sinks, showers, laundry for non-potable uses (irrigation, toilet flushing). Reduces freshwater demand.
Guide étape par étape
- 1Typical household: 50-80% of wastewater is gray water
- 2Treatment options: simple settling, biofilter, or UV disinfection
- 3Using gray water reduces freshwater demand 30-50%
Exemples résolus
Entrée
Household 200 L gray water daily, uses 100 L for toilet/irrigation
Résultat
Freshwater reduction: 36,500 L/year
Equivalent to 1-2 months supply
Erreurs courantes à éviter
- ✕Mixing gray water with black water (toilet)
- ✕Over-storing gray water without treatment (odor and contamination)
Questions fréquentes
What's safe to include in gray water?
Sink, shower, laundry water. Exclude toilet (black water), which requires separate treatment.
How long can gray water be stored?
Without treatment: 24-48 hours (anaerobic bacteria grow). With UV/chemical: up to 1 week.
Prêt à calculer ? Essayez la calculatrice gratuite Gray Water
Essayez-le vous-même →