Don't you have any problems with sediment buildup in 
the drops when coming directly off the bottom? We have
seen too many installations where this has occurred
and we were called in to make repairs and told by the
Owner to use return bends (armovers) and come off the
top of the branch line fitting and never the bottom.
The first preference is off the top of the branch, the
second is off the side, and the last choice (resort)
was off the bottom.  It was always made clear to us
that the bottom was only to be used if there was no
way to use either of the first two preferences.   

Just inquiring.


Loren Johnson - CFPS, CET
Fire Protection System Consultant
The Hitchcock Company
Peoria, IL
--- "Gregg Key, SET" <[EMAIL PROTECTED]> wrote:

> Kelly
> 
>       The rule of thumb varies with whoever you are
> trying sell it too.
> Generally when we don't install them center of tile,
> we at least try to make
> them line up and keep the plate off of the grid.
> When possible, we try to
> hit center of tile with drops coming straight out of
> bottom. 
> 
> 
> Gregg Key 
> 
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