Gray Water Reuse in Florida by Yilin Posted: October 10, 2017 What is Gray Water? The exact definition of gray water varies from state to state, but generally includes any household wastewater other than that which comes in direct contact with human waste (such as water… Read More Category: Natural Resources, UF/IFAS Extension, Water Tags: drainage, environmental, gray water, grey water, groundwater, potable, septic, wastewater