LeakBird

(Jan. 11, 2009, The Tuscon Citizen)
A precious natural resource many Tucsonans let trickle away could mean big savings.
Harvested rainwater could be used to offset drinkable water now pumped, treated, delivered and used outdoors, said James J. Riley, associate professor of soil, water and environmental science at the University of Arizona.
An increase in rainwater harvesting could [...]

(Sept. 25, Tuscon Citizen)  “The Water Conservation Alliance of Southern Arizona recently gave 61,000 leak detection kits to area water providers, though none were given to Tucson Water.“

The only problem is, few people are motivated to do the dye test every month.  Why not subsidize something that is more effective, like an acoustic battery-operated leak [...]