Are backflow prevention assemblies really necessary on fire sprinkler systems? Do they need to be installed on residential fire protection systems? Is the protection of the potable supply worth the pressure and volume loss that results from the installation of cross-connection protection? Have there been documented cases of individuals becoming ill as a result of a backflow incident with a water based fire protection system? Has a documented cross-connection problem occurred with a fire protection system in the last five years? These are questions frequently heard in cross-connection control discussions.
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