I'd talk to the AHJ Nd see if he would go along with a mod. Also. Check on 
plans for future additions. 

Sent from my iPhone

On Jan 2, 2012, at 12:03 PM, Greg McGahan <[email protected]> wrote:

> We have a school that is getting 2 small additions at the end of the wings
> of approx. 6,000 and 3,000 sqft respectively. If we tried to tie on to the
> end of one system to feed the larger addition, that system would be
> approximately 56,000 sqft. Th other two options (I guess) would be to run
> 250' of 3" back to the main riser and create a new system for this
> addition, or use it for both additions with another 300' or so of main, or
> maybe to put in a new control valve and flow switch at each addition to
> supply them. I am not sure if the second option would meet the intent of
> the code and I am too confused to figure this out this early in the year.
> 
> The other addition appears to be on a system that is already about 53,000
> sqft and adding the addition would also put it around the 56,000 mark.
> 
> Has anybody ever asked for a variance on something like this? It honestly
> doesn't make any sense to put it in a separate system (other than to meet
> code) because the operation of the system will not actually be effected.
> Especially in the way these systems are shaped, there are several different
> fire rated zones of much smaller area.
> 
> Happy New Year and thanks,
> 
> -- 
> Greg McGahan
> Living Water Fire Protection, LLC <http://www.livingwaterfp.com>
> 1160 McKenzie Road
> Cantonment, FL 32533
> 850-937-1850
> fax 850-937-1852
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