If the individual floor control valves have their own flow switches flowing 
only one system wouldn't provided verification of operation of the individual 
flow switches.



Craig L. Prahl, CET   
Fire Protection 
CH2MHILL
Lockwood Greene
1500 International Drive
Spartanburg, SCĀ  29304-0491
Direct - 864.599.4102
Fax - 864.599.8439
CH2MHILL Extension  74102
[email protected]



-----Original Message-----
From: [email protected] 
[mailto:[email protected]] On Behalf Of Greg McGahan
Sent: Wednesday, April 11, 2012 1:47 PM
To: [email protected]
Subject: main drain test

When you have a building with multiple floor control valves I have the
following question:

If the intent of the main drain test is to test the supply, can you
accomplish that by flowing the largest or the furtherest from the riser
instead of flowing each one individually?

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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