SepticTanks

Don't laugh ;-)

I find septic tanks very interesting : a fascinating

combination of chemistry, ecology and hydraulic engineering.

http://www.septic-info.com/doc/catlist/septicbasics/home.html

Not to be confused with ScepticTanks

Ah; Then you may be interested in [the http://www.worldtoilet.org/ the World Toilet Organization..!]

See also :

AutonomousBuilding

EcoWaterTreatment

CategoryDecentralizedLiving, CategoryEcology