Although backflow preventers are more common at commercial buildings that have fire sprinkler systems, residential customers ... Whether A Sewer Backflow Preventer Device Is Working It's important ...

The tester also examines backflow prevention devices that may be installed at cross connections to make sure they ... and represents just one step that Rooter-Man SC is taking to make critical ...

A backflow preventer is a special-purpose device used for protection against the undesirable reversal in the flow of water. These devices are primarily used in sewer, wastewater, residential ...