The present invention provides a fluid control system and associated
methods. The fluid control system includes a source of a pressurized
fluid and a first spool valve having at least two positions, wherein the
first spool valve is connected in fluid communication with the source of
the pressurized fluid. The fluid control system further includes a second
spool valve having at least two positions, wherein the second spool valve
is connected in fluid communication with the first spool valve and the
source of the pressurized fluid. When the first spool valve is in a first
position and the second spool valve is in a second position, a first
portion of the pressurized fluid is directed from the source of the
pressurized fluid to the second spool valve via the first spool valve.