"The installing contractor told the owner: the pressure gauge is installed in the wrong place and the system is fine."
The manufacturer told the buyer: the brakes were installed in the wrong place but the car is fine. The banker told the customer: the investments were posted in the wrong place but the his money is fine. The farmer told the consumer: the poisons were used in the wrong place but the food is fine. The doctor told the patient: the pacemaker was installed in the wrong place but he is fine. "It's alright M'am. We're musicians." On Fri, Dec 6, 2013 at 10:42 PM, Forest Wilson Fire Sprinkler Contractor < [email protected]> wrote: > I recently inspected a wet sprinkler system. > It was installed in 1997 and had not been inspected or tested since > installation. > I conducted a main drain test. > The residual pressure was 30 psi. Static 75. > According to the hydraulic calc plaque, the residual should be 60. > The gauge was downstream of the main drain, approx 80 feet of pipe > downstream. > > I sent a Notice of Impairment to the owner and requested a copy of the > Contractors Test Cert to use as a benchmark. > The installing contractor told the owner: the pressure gauge is installed > in the wrong place and the system is fine. > > Any thoughts? > > > Forest Wilson > Fire Sprinkler Contractor > 937-736-0425 > > Notice: > This message is confidential. It may also be privileged or otherwise > protected by work product immunity or other legal rules. If you have > received it by mistake, please let us know by e-mail reply and delete it > from your system; you may not copy this message or disclose its contents to > anyone. Please send us by fax any message containing deadlines as incoming > e-mails are not screened for response deadlines. The integrity and security > of this message cannot be guaranteed on the Internet. > > -------- Original message -------- > From: Tom Duross <[email protected]> > Date:12/06/2013 6:02 PM (GMT-05:00) > To: [email protected] > Subject: RE: NFPA 13D Water Supplies > > Dude, > I believe every tank system has refill whether off another pump and tank, > or > traditional domestic. We do pumps and tanks all over Boston (13D up to 3 > family but 20 minute supply per Maurice P.) mainly because the purveyors > are > so expensive with permits, bonds, tap fees and pipe rentals that Owners > have > spent the cost of the tank system before they dig a hole. > I believe you also have to factor in domestic usage so refill may not be as > great. I've never taken a credit for it because I'm leery of degradation > of > the pumps over time. I will say SPP (and others) make good 220/1 pumps but > I'd advise using a SS fitted pump rather than CI, about $75 more for the > typical 2 HP end suction variety. I would also advise getting a pump > control panel too. CH makes a nice one sold through RH Stearns in > Portsmouth, NH. It has an off-delay which helps with hammer prevalent in > these systems and will also drive a bell or horn/strobe and has dry > contacts > for Fire Alarm. One thing I did with the last two I bought was to install > a > run timer, $50 from Grainer, 1 yr. battery, and runs the pump once a week > for 10 minutes. Keeps it working. One other thing, install a low pressure > switch on the riser and connect as alarm. That way if you lose power and > have no water supply and a head opens, the alarm still rings through its > batteries and people get out. > Dude > > Folks, > > Been watching the thread and wanted to chime in a little as Mr. Huggins, PE > has done. > > Any 220V pump and any tank that will hold water are an acceptable supplies > in areas served by well water. And when sizing the tank, you may use the > water supply's refill rate to eliminate some of the gallons required to be > stored. So on a home with a well pump (that probably already has it's own > pump and pressure tank), you can branch off of that supply and fill a tank. > That tank can be sized like so: > > Demand gpm X 10 minutes = Total Water (in gallons) > > Home water Supply gpm X 10 minutes = Total Refill (in gallons) > > Total Water MINUS Total Refill = Tank Size > > Two sprinklers (YES! ONLY CALC 2 IN THE BASEMENT) x 10 minutes usually > equals less than 300 gallons total. Subtract 100 gallons or so for refill > and you only need a 200 gallon tank. A 6ft tall, 30" diameter tank (fits > through a 32" door), will suffice (+/- 220gallons). > > A 2HP pump can handle this (up to 45 psi). See SPD Pumps for some really > good charts and products.http://www.spdinc.com/products/residential.html > (Or call and talk to Dave and tell him I said, "YO!") > > This is a very inexpensive solution for a rural home. > > > > It should be recognized that the above is my opinion as a member of the > NFPA, and has not been processed as a formal interpretation in accordance > with the NFPA Regulations Governing Committee Projects and should therefore > not be considered, nor relied upon, as the official position of the the > NFPA, nor any of their technical committees. > > Sincerely, > > > Cecil Bilbo > Academy of Fire Sprinkler Technology > Champaign, IL > 217.607.0325 > www.sprinkleracademy.com > [email protected] > > OUR STUDENTS SAVE LIVES!! > _______________________________________________ > 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 > _______________________________________________ > Sprinklerforum mailing list > [email protected] > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > -- Ron Greenman Instructor Fire Protection Engineering Technology Bates Technical College 1101 So. Yakima Ave. Tacoma, WA 98405 [email protected] http://www.bates.ctc.edu/fireprotection/ 253.680.7346 253.576.9700 (cell) Member: ASEE, SFPE, ASCET, NFPA, AFSA, NFSA, AFAA, NIBS, WSAFM, WFC, WFSC They are happy men whose natures sort with their vocations. -Francis Bacon, essayist, philosopher, and statesman (1561-1626) A problem well stated is a problem half solved. -Charles F. Kettering, inventor and engineer (1876-1958) _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
