Most off color references are to comic relief that is of the dark variety. But this is no joke and the off color water I’m referring to is technically known as “gray water.” So gray water is somewhere between “white water” and “black water.” White being potable or drinkable water and black being considered sewage i.e. containing human waste which is sent to sewage treatment facilities for clean up before it is returned to the environment.
The thing is that appropriate gray water can be recycled and used for other purposes like landscape irrigation or in our case for use in flushing toilets and urinals after which the water is sent to the municipal sanitary sewer system for treatment. This is yet another way to conserve precious potable water and is also gaining the Visitor Center project LEED points. Once again, several points are in the balance for sustainable design. Continue reading