Magical Orchard grey water treatment system

Design summary: 

While in Portugal in Spring 2011 I redesigned a friend's bath house grey water treatment system.

About the design: 

I re-routed the grey water through some gravel tanks. In the summer it can then irrigate the plum trees, in the winter it can fill the existing pond with cleaner water.

Date of design: 
2011
Designers: 
Peter Cow