Water purveyors (the water supplier) have two primary charges. First is to provide clean drinking water and the second is to ensure aesthetically pleasing water. Both are driven by a public trust. Since they have no control of how their water is being used or abused once it enters a premise the AWWA has a set of rules governing how to separate private premises from a reverse flow to the public system, determined by the degree of hazard to health and appeal. The methods are governed by the health code and the installation rules by the plumbing code. Sprinkler systems connected to the public supply are considered to be a potential threat to taste while nuclear power plants and sewage treatment facilities are considered to be such a risk to health that they are not allowed to be directly connected at all, and require a break tank with a fill line having an air gap designed to a minimum specification (2 times the diameter of the fill line above the flood rim of the tank if I recall properly).
On Thu, Apr 3, 2014 at 10:50 AM, Forest Wilson <[email protected]>wrote: > Most water purveyors want the backflow installed on the supply side of the > fire pump. > > > > On 4/3/2014 1:49 PM, Cesar Lira wrote: > >> This has nothing with how far is the pumps room with the sprinklers >> system?? >> >> >> >> >> -----Mensaje original----- >> De: [email protected] >> [mailto:[email protected]] En nombre de >> [email protected] >> Enviado el: jueves, 03 de abril de 2014 10:19 a.m. >> Para: [email protected] >> Asunto: RE: WHEN TO DE USE BACK FLOW PREVENT??? >> >> A backflow is installed on the water line serving a sprinkler system when >> the sprinkler system water comes from a potable (suitable for human >> consumption) water source. >> >> The rules are typically provided by the Department of Health or Water >> Departments. >> >> The rules may vary depending on the location of your project. >> >> Craig L. Prahl >> >> >> >> -----Original Message----- >> From: [email protected] >> [mailto:[email protected]] On Behalf Of >> Cesar >> Lira >> Sent: Thursday, April 03, 2014 1:07 PM >> To: [email protected] >> Subject: WHEN TO DE USE BACK FLOW PREVENT??? >> >> Hi, everybody. >> >> Where can I use or where INEED to use a back flow preventer there is any >> rule for that???.. >> >> >> tHANKS >> >> _______________________________________________ >> 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 >> > > > -- > Forest Wilson > Project Manager > > 1855 Bellbrook Ave Ste C > Xenia OH 45385 > Ph: 937-736-0425 > > ///WHO IS JOHN GALT?/// > > ******This email and any files transmitted with it are confidential and > intended solely for the use of the individual or entity to whom they are > addressed. If you have received this email in error please notify the > system manager. This message contains confidential information and is > intended only for the individual named. If you are not the named addressee > you should not disseminate, distribute or copy this e-mail. Please notify > the sender immediately by e-mail if you have received this e-mail by > mistake and delete this e-mail from your system. If you are not the > intended recipient you are notified that disclosing, copying, distributing > or taking any action in reliance on the contents of this information is > strictly prohibited.*** > > > _______________________________________________ > 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
