Rockville Plumber Archives - Durance Plumbing

Backflow Preventer Test

We perform the WSSC mandated Backflow preventer test and Backflow assembly installation in Bethesda, Rockville, Silver Spring, Takoma Park, Chevy Chase and other cities and towns in Montgomery county, Maryland. The WSSC states that backflow preventer assemblies have to be inspected and tested for proper operation yearly. The inspection and test can only be performed […]

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