ok good, now then, if you are/were an A.H.J., how would you answer this question: "How much time do we get to be able to re-fill a water storage tank in 8 hours"? for example, 150,000 gallon capacity for demand*duration, say tank A, from which the pump takes suction. Now we build a twin tank B, and connect to tank A with 8" pipe with a shut-off valve normally closed. There is an event and tank A runs dry. We open the shut-off valve and tank A is re-filled in about 18 minutes. The well pump then starts refilling tank B, which will take 3 days. So the question is "how much time do we get to be able to re-fill the tank within in 8 hours?".
-----Original Message----- From: Brad Casterline [mailto:[email protected]] Sent: Thursday, May 16, 2013 8:18 AM To: [email protected] Subject: NFPA 22 2013 Water storage re-fill time. asking for a co-worker: 1) Why are water storage tanks required to be re-filled in 8 hours? 2) Would the requirement apply to ponds (man-made with liner in this case)? 3) Are there any alternatives to the requirement? (the pond is large and filled by a well pump with a pumping rate that would take more than 8 hours) many thanks, Brad Casterline, NICET IV Fire Protection Division FSC, Inc. P: 913-722-3473 [email protected] www.fsc-inc.com Engineering Solutions for the Built Environment _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
