Big Pressure Regulator

I know many neighborhoods who would love the water pressure regulator pictured below. The Lake Whatcom Water and Sewer District installed it a few months back to control the water pressure to a street in Geneva (Whatom County). They installed one a block north, too, for a similarly sized street.

Basically, it comes pre-fab from a factory, vault and all. The contractor digs up the water main, turns off the water, cuts the main, lowers the vault, connects the main to the pipes in the vault, checks for leaks, adjusts the pressure and viola! Easy money, that.....(not).

While the main prv (pressure regulator valve) does lower the consumer's pressure, it also lowers the stress on the water mains, thereby prolonging the life of the pipe.