Szalay György

Szalay György

Szalay György
More ideas from Szalay
Grey Water: How it works. Visit the slowottawa.ca boards >> http://www.pinterest.com/slowottawa/

# Week Having grey water systems is one of the best sustainable urban design ideas. Grey water systems reduce the amount of fresh water required to operate a building as well as reduce the amount of wastewater produced by a building.