Image Description -  0650

A schematic diagram is captioned Figure1. Series-Parallel Water
Valve Arrangement.  Four water valves are shown at the corners of a
square.  The two valves on the left are designated ARM and connected
to a water supply.  The two valves on the right are designated 
ACTIVATE and connected to a FIREX/DELUGE SPRAY.  Lines connecting
the four valves form a shape like the letter I.  The connecting
lines indicate the six possible pathways between the WATER SUPPLY
and the FIREX/DELUGE SPRAY through the four valves.