Contents+of+a+sewer
131Experimental musical instrument — Gage Averill playing an experimental hydraulophone pipe organ made from a piece of sewer drainage pipe and plumbing fittings in 2006 An experimental musical instrument (or custom made instrument) is a musical instrument that modifies or extends… …
132Deer Island Waste Water Treatment Plant — Aerial view, Deer Island Wastewater Treatment Plant, 2010. Photo by Doc Searls …
