"Somewhere in Barney Reservoir, a valve was leaking. "

[ensho]

http://www.oregonlive.com/hillsboro/index.ssf/2011/10/repair_of_hillsboros_barney_re.html


Repair of Hillsboro's Barney Reservoir uncovers hidden world


During regular water testing last November, workers found traces of hydraulic oil in Hillsboro's water supply. The oil itself is safe -- Hillsboro uses food-grade oil -- but its presence suggested a valve in the reservoir supplying the city's water was seeping. If the city didn't repair it, the whole system could fail in an emergency.

-snip-

Because the reservoir is 1,640 feet above sea level, divers cannot stay underwater long without risking the bends. That meant to fix the leak, the city, which owns the reservoir, would have to drain it.

-snip-

In the empty, almost apocalyptic canyon, crews found beer cans, cracked mud and patterns etched into the earth by the water's undulations. They found an old road, still perfectly usable. And they found the tiniest of cracks in the actuator that operates a valve, likely caused by expanding rust.

-snip-

Last week, Mark Furlong with Advanced American Construction was working to release all the air from the repaired valve so crews could fill the actuator with oil. How do you remove air from a pipe?

"You move it back and forth," said John Reed, the dam operator.

-snip-
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now they are waiting for rain to refill the reservoir. the fixing cost $100,000.

[ProgressiveProfessor]

1. More accuracy in the media...

Because the reservoir is 1,640 feet above sea level, divers cannot stay underwater long without risking the bends.

What total nonsense...

[bbinacan]

2. Cool pics. n/t