Thank you for exploring graywater reuse! A laundry-to-landscape (L2L) system redirects water from your washing machine to irrigate trees and plants, helping reduce demand on potable water while supporting your landscape.
Graywater systems can be especially beneficial in Yolo County, where outdoor irrigation accounts for a large share of household water use. They can also reduce strain on septic systems in rural areas by lowering the volume of wastewater entering the system.
Before installing a graywater reuse system, please consult with your relevant Building Division (city or county) to determine if a permit is needed for your specific system. For Davis residents, the City of Davis has a simple L2L handout that provides more information on system design and identifies which systems require a construction permit with tcity limits.
A few things to keep in mind:
- Use plant-friendly, low-sodium liquid detergents to protect soil health
- Ensure proper system design to avoid pooling or runoff (see handout above for more information on system design)
- Be mindful of site conditions like soil type and groundwater depth, which can affect how well water is absorbed
- Direct water to established plants like trees or shrubs, rather than edible root crops
With the right setup, graywater reuse can be a simple, effective way to conserve water and support a more resilient home landscape.