Closed Backflow Device no flow!

Closed Backflow Device no flow!

By | Published November 3, 2013 | Full size is 717 × 960 pixels

If your sprinklers are not working and your Backflow device looks like this, you have just found your first problem.
The supply side vertical pipe has the blue handle crossing the pipe. This handle needs to be opened a 90 degree turn only one direction to restore flow the the sprinkler system.

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