I have a relatively unusual project (for me), where we are pulling from a raw water source (an open lake reservoir).
A sprinkler system is being fed from this supply, so we will only have an alarm check valve (to retain the pressure in the building) on the riser; no backflow preventer.
Is a means to forward-flow test required for an alarm check valve only?
Technically the check valves serves as a means to prevent backflow, but it's also not a backflow preventer (at least by the name of the equipment). NFPA 13 doesn't define the term "backflow preventer".
This one is also subject to UFC criteria, so I'm very interested in a code justified pathway than just "talk to the AHJ". Thanks in advance.
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