Backflow prevention devices
In the NFPA’s Journal’s recent article “Heads Up Sprinkler and Suppression Systems,” author Russell P. Fleming explains that backflow prevention devices are most commonly used when sprinkler systems are connected to non potable public water supplies. This is most especially done when the systems are interconnected with alternative sources of water, when antifreeze or other chemicals are used as additives.
Since these devices prevent the reverse flow, they are critical for keeping sprinkler systems up to code. When considering a backflow inspection, the concerns for the type of testing necessary has changed.
Backflow remains a legitimate health concern, and therefore “the standard presumes that local or state requirements will continue to ensure that the devices are properly tested by qualified personnel.”
In order to fully assess what needs to be tested, it’s best to turn to a trusted expert on the subject of your fire sprinkler system and backflow issues.