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Lawn-watering rules contributed to L.A. main breaks, experts find

Apr 13, 2010 9:15:00 PM - latimes.com
Extreme changes in water pressure combined with aging infrastructure to create spectacular blowouts.

A blue-ribbon panel of scientists said Tuesday that the high-volume water main breaks that bedeviled Los Angeles last summer and fall were caused in part by the city's restrictions on lawn watering, and their findings could force the city to remake its strict water conservation policy.