If properly stored and separated from potable water, graywater collected from sinks, showers, and clothes washers can be used to irrigate landscaping.
Graywater Collection & Reuse in Landscape — The Land Group, Inc.
Appalachian Community Technical Assistance and Training at West Virginia University
Shades of Gray(water) - Activity - TeachEngineering
Combined sewer - Wikiwand
Laundry to Landscape Original Complete Information Hub
Simple Greywater Systems For Your Home
Schematic diagram for the treatment of greywater
Aqua2Use PRO Greywater Recycling System - Rainwater Collection and Stormwater Management
3 Quantities Available for Beneficial Use and Potential Impacts on Water Demand, Using Graywater and Stormwater to Enhance Local Water Supplies: An Assessment of Risks, Costs, and Benefits
Mostly the following repairs are required i Large brick sewers will require
Grey Water Re-Use