Just curious how do the water purveyors deal with fire department apparatus using fire hydrants ?
What's the concern, low or negative suction pressures ? John Drucker Assistant Construction Official Fire Protection Subcode Official Electrical Subcode Official jdruc...@redbanknj.org<mailto:jdruc...@redbanknj.org> Cell/Text 732-904-6823 Todd Williams <fpdcdes...@gmail.com> wrote: We have a purveyor here in CT who will not allow booster pumps fed from their mains under any circumstances. They cover around 3 times the population that yours cover. There is no arguing with them. They can do pretty much what they want as long as it meets health code and doesn't restrict access. Todd G Williams, PE Fire Protection Design/Consulting Stonington, CT 860-535-2080 (ofc) 860-608-4559 (cell) Sent using CloudMagic<https://cloudmagic.com/k/d/mailapp?ct=ti&cv=6.0.64&pv=8.2> On Thu, Aug 11, 2016 at 11:43 PM, mphe...@aerofire.com <mphe...@aerofire.com> wrote: I have a private water purveyor in a small town in the Central Valley area of California who will not allow a fire water booster pump to be installed taking suction directly from their 16" municipal main without one of two protection methods. Their first choice is an appropriately sized break tank with the pump suction connected directly to the tank and an air gap fill line for refill. Their second option is an appropriately sized surge suppression tank, 1000 gallon minimum capacity with calculations to substantiate the actual size, and an RPZ Backflow device installed on the suction side of the booster pump. The town served by this municipal system has a population of 130,000 and a land area of 32 square miles. For our project we would use a 1500 GPM engine driven booster pump with 165 psi net discharge pressure to supply a K 17 ESFR system designed for 12 sprinklers operating at 52 psi. Now for the questions. 1) Does anyone have any experience with this type requirement who can explain this in a way that makes sense? 2) Has anyone ever contested these requirements and won the argument? Anyone? Mark at Aero 602 820-7894 Sent from my iPhone
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