I did a flow test a couple of days ago on an underground main that
had recently been looped. There is a main that feeds a hydrant and
sprinklers to the building at the end of the loop. I flowed the
hydrant and read the pressures off the first test port on the
backflow preventer (before any checks) on the system riser. The
contractor called me this morning and said my test was not valid
because I didn't use two hydrants, like it says in NFPA. I think I am
OK and the effective point would be the connection of the main to the
sprinkler system feed. Am I right or am I missing yet another obscure ruling?
Todd G. Williams, PE
Fire Protection Design/Consulting
Stonington, Connecticut
www.fpdc.com
860.535.2080
_______________________________________________
Sprinklerforum mailing list
http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum
For Technical Assistance, send an email to: [email protected]
To Unsubscribe, send an email to:[email protected]
(Put the word unsubscribe in the subject field)
