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Backflow Test in a vault

September 4, 2011

In general you have to deal with flooded vaults from time to time. After you get them pumped out you climb into a slimy hole to do the backflow test.

But every once in a while you will run into one like this 1 in a shopping center parking lot in Redmond Washington. It is half full of oily sludge. You cannot pump this into the street. You have to pump this toxin into containers and properly dispose of it at a hazmat site.

You also must also follow OSHAs confined space guide lines or this backflow test may be the last one you do.

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