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Starting Member


Friday, December 2nd 2005, 3:17am

DCA and Shutoff Valve

Can a DCA backflow device be used as a main shutoff to the irrigation system, or should a separate ball shutoff valve be installed? If a separate ball shutoff valve is recommended, should it be placed before or after the DCA?

Thank you


Supreme Member

Posts: 5,198

Location: Metro NYC


Friday, December 2nd 2005, 4:51am

Place the separate shutoff valve before the backflow preventor. You want the ability to change out the BP if necessary.

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