If I am calculating a tree type system using the area/design method, and have 
several different lengths between sprinklers on a branch line. Would I use the 
longest length to determine the amount of 
sprinklers on a branch line. I have always used an average (which I've probably 
been wrong all these years).

1.2√design area
           S 
S= Distance between sprinklers on branch line
 


1.2√design area
           S 
S= Distance between sprinklers on branch line
 



George Medina Jr. 


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