lol, FML look at this diagram, that hose I need is 50$, but this check valve I have was 3$ plus shipping.
for 50$ that might have a check valve in it. Item #4
http://onlinemazdaparts.com/parts/2008/Mazda/3/Mazdaspeed?siteid=214264&vehicleid=204553&diagram=5417478&diagramCallOut=3
also read...