Because grey-water use, especially domestically, reduces demand on conventional water supplies and pressure on sewage treatment systems, its use is very beneficial to local waterways.
In times of drought, especially in urban areas, grey-water use in gardens achieves some of the goals ecologically. Create better water awareness.
- Lowers fresh water extraction from rivers and aquifers
- Less impact from septic tanks and treatment plants infrastructure
- Topsoil nitrification
- Reduced energy use and chemical pollution from treatment
- Groundwater recharge
- Increased plant growth
- Reclamation of nutrients
- Greater quality of surface and groundwater when preserved by the natural purification in the top layers of soil than generated water treatment processes
- Teaching our children water responsibility