Main Drain Test is required to be compared to the original Test and the annual Tests, comparing it to the calc sticker is meaningless, you can’t guarantee you are flowing the same volume as the calc sticker.
On Wed, Sep 11, 2024 at 8:20 AM Rocci 3 Cetani <[email protected]> wrote: > We have a jurisdiction that failed our final inspection because the > residual pressure during the main drain test doesn’t match our BOR residual > pressure from the hydraulic calcs for and OH extended coverage system. Am > I missing something? I don’t see how the residual pressure on a main drain > test has anything to do with the residual pressure from our calcs…..I was > always under the impression main drain tests were to verify there hasn’t > been a been a drastic change to the supply . This was an existing parking > garage where they added solar panels on the top level so we added a > sectional riser @ the top floor and added the new system. The fire > department just keeps saying to upsize the riser from the 1st floor to > the 4th > <https://www.google.com/maps/search/16840+Joleen+Way+Bldg.+A+%0D%0A+Morgan+Hill,+CA+95037?entry=gmail&source=g> > floor which literally does nothing to my calcs. The building owner has > spent 10’s of thousands of dollars flushing the UG, inspecting the UG for > obstructions, paid for additional flow test and serviced the back flow. > We are at a complete loss on what else to do as the fire department is > adamant that’s the main drain test has to match the hydraulic > calcs…..anyone ever come across a situation like this with a jurisdiction? > Any suggestions? > > > > *Rocci Cetani III* > > > > *Northern California Fire Protection Services Inc.* > > 16840 Joleen Way Bldg. A > <https://www.google.com/maps/search/16840+Joleen+Way+Bldg.+A+%0D%0A+Morgan+Hill,+CA+95037?entry=gmail&source=g> > > Morgan Hill, CA 95037 > <https://www.google.com/maps/search/16840+Joleen+Way+Bldg.+A+%0D%0A+Morgan+Hill,+CA+95037?entry=gmail&source=g> > > P-(408) 776-1580 EXT.1010 > > F-(408) 776-1590 > > > > To help better serve you. Please visit our new and improved website at: > > www.norcalfire.com > > > > CONFIDENTIALITY NOTICE: This message and any document accompanying it may > contain confidential information belonging to the sender. The information > is intended only for the use of individual or entity named above. If you > are not the intended recipient, or the employee or agent responsible to > deliver this message to the intended recipient, you are hereby notified > that any disclosure, copying or taking of any action in reliance on the > contents of this information is strictly prohibited. If you have received > this transmission in error, please immediately notify us by telephone to > arrange for return of the documents. > > > > _________________________________________________________ > SprinklerForum mailing list: > https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org > To unsubscribe send an email to > [email protected] -- Thank You Brett Peters PFPS Ltd (780) 777 0568 Sent From My iPhone
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