Hey guys,
I just went to our local supply store and asked about using pvc for a pneumatic potato cannon and they strongly advised me to not use PVC because it tends to have a "whipping action" when air pressure is suddenly dropped. This whipping action causes shattering of the pipe where the pipe ...

Where could I get a piston/diaphram valve?

Would this work????
search "sprinkler solenoid"
<a href="http://www.homedepot.com/prel80HDUS/EN_US/diy_main/pg_diy.jsp?CNTTYPE=PROD_META&MID=9876&com.broadvision.session.new=Yes&CNTKEY=misc%2fsearchResults.jsp">Sprinkler Valve</a>

EDITED BY PIMPMANN22, BECAUSE LINK F*CKED THE FORMAT OF THE PAGE

Fellow Spud-launchers,
I'm making my first pneumatic semi-auto potato cannon and I need to know more about these solenoid thingys. Any links would be greatly appreciated.
1.) How much air flow can they handle? For instance, my plans call for a 4" diameter chamber 12" long at 50-75 psi into a 1.5 ...