Greywater Infiltration Bed: Objectives, design description, and criteria Similar to water supply goals, finding a balance between public and private services drove greywater goals. Greywater produced in the home from the bathroom sink, shower, and clothes washer is infiltrated on site in a vegetated infiltration bed. Existing sewer connections remove blackwater. Primary benefits of on site greywater management include reductions of required municipal energy used to transport and treat wastewater at a central facility, and re-charge of the local groundwater through infiltration.
Methods and outcomes
Consultation with technical advisors revealed the importance of bed saturation—specifically, the assurance that greywater discharged below ground would not percolate to the surface. Measurements show that the bed has yet to be fully saturated, with ample capacity to infiltrate all of the two-person home’s greywater discharge.