NFPA 13 states that meters are prohibited from use on sprinkler systems.

The statement that NFPA 13 states meters are prohibited from use on sprinkler systems is false. NFPA 13, which provides regulations for the installation of sprinkler systems, does not completely prohibit the use of meters. Rather, it allows for their use under certain circumstances, provided they do not affect the performance of the fire protection system. Meters used for credit purposes or to monitor system water supply are permissible as long as they comply with certain requirements and do not impede system operation.

Meters can be utilized for billing or to measure water flow in systems where their presence does not negatively impact the reliability or effectiveness of the fire protection system. It is essential, however, that the installation of any meters aligns with local codes and does not interfere with the intended function of the sprinkler system during a fire event.