Provide a PIV type isolation valve in the system every 6 sprinkler risers and/or fire hydrants.
Action Required:
Provide a PIV type isolation valve in the system every 6 sprinkler risers and/or fire hydrants.
Provide a PIV type isolation valve in the system every 6 sprinkler risers and/or fire hydrants.
Provide a PIV type isolation valve in the system every 6 sprinkler risers and/or fire hydrants.