Craig, The FD will need to truck in water for hose, plus there is a nearby river they can draft from.
This is a very difficult site as there is a lot of ledge and they want the tanks underground. They are trying to avoid having to blast. There area other issues, but would take too long to describe. Todd G Williams, PE Fire Protection Design/Consulting Stonington, CT 860-535-2080 (tel:860-535-2080) (ofc) 860-554-7054 (tel:860-554-7054) (fax) 860-608-4559 (tel:860-608-4559) (cell) > > On Sep 23, 2025 at 10:18 AM, <Craig Prahl (mailto:[email protected])> > wrote: > > > > > > One question, if there is no public water supply, what will the fire > department use for firefighting? Will they truck it in? > > > > > > > > Are these concrete tanks above ground? What is the reason for this > arrangement in lieu of one single tank? > > > > > > > > > > > > Craig Prahl |Jacobs | Fire Protection SME – EV, AM, DC, Special > Hazards > > > > [email protected] (mailto:[email protected])|www.jacobs.com > (https://urldefense.com/v3/__http:/www.jacobs.com/__;!!KZTdOCjhgt4hgw!-_khxU8gU0_6jc895I7kRbnU8JghRDsWgqOblZ4jr7Qp2IVbR30VYw_hWvNFtphnl0uWpB9KIvbYi1pvZz4$) > > > > 1041 East Butler Road Greenville, South Carolina 29606 > > > > CONTACT BY: Phone 1-864-676-5252, Email or MS TEAMS > > > > > > > > > > > > > From: Fpdcdesign <[email protected]> > Sent: Tuesday, September 23, 2025 7:45 AM > To: Sprinklerforum <[email protected]> > Subject: [EXTERNAL] [Sprinklerforum] Multiple tank pump suction > > > > > > > > > > I have a client that is building a retail store in an area with no public > water supply. Sprinkler water will be supplied by pump and tank. My estimate > is for 20000 gallons. The client want to use 4 - 5500 gallon concrete tanks > connected in series. > > > > > > > > > > > > I have a client that is building a retail store in an area with no public > water supply. Sprinkler water will be supplied by pump and tank. My estimate > is for 20000 gallons. The client want to use 4 - 5500 gallon concrete tanks > connected in series. My question is what size connections between the tanks > will be required? NFPA 22 doesn’t address this (that I found). An old copy of > the Hydraulic Institute Standards I have states that for piping to suction > pits, keep the velocity below 2 ft/sec. Would this be a reasonable number? > > > > > > > > > > > Todd G Williams, PE > > > > > Fire Protection Design/Consulting > > > > > > Stonington, CT > > > > > > 860-535-2080 (tel:860-535-2080) (ofc) > > > > > > 860-554-7054 (tel:860-554-7054) (fax) > > > > > > 860-608-4559 (tel:860-608-4559) (cell) > > > > > > > > NOTICE - This communication may contain confidential and privileged > information that is for the sole use of the intended recipient. Any viewing, > copying or distribution of, or reliance on this message by unintended > recipients is strictly prohibited. If you have received this message in > error, please notify us immediately by replying to the message and deleting > it from your computer. >
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