>From NFPA 25-2014: "13.2.5.2 In systems where the sole water supply is through a backflow preventer and/or pressure-reducing valves, the main drain test of at least one system downstream of the device shall be conducted on a quarterly basis."
I've tried to make sure I am not taking this out of context or missing something. If this is being done there must be a WHOLE LOT of main drain testing going on!!! Any ITM Gurus got their ears on?? Thanks, Brad _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
