user13355: I'm looking for a low cost motorized water valve.  I've done a number of searches and have found nothing compelling.  Has anyone here used a motorized water valve with Arduino?  What would you recommend?
A fail-open solenoid might also work but I'd like to try my hand at a motorized valve.
The valves I found start at US$50.  I'm looking for something cheaper.  The purpose is tinkering and I'd like to make an "if water detected - then close valve" sketch.  Ir's simple, just more expensive than I expected.

user16087: You can get sprinkler valves, that use solenoids, for under $20 that fit on plastic PVC pipe and are designed for water, such as these at SprinklerWarehouse.  They typically use pipe sizes of about 1 inch.  

13355: <p>I'm looking for a low cost motorized water valve.  I've done a number of searches and have found nothing compelling.  Has anyone here used a motorized water valve with Arduino?  What would you recommend?</p>

<p>A fail-open solenoid might also work but I'd like to try my hand at a motorized valve.</p>

<p>The valves I found start at US$50.  I'm looking for something cheaper.  The purpose is tinkering and I'd like to make an "if water detected - then close valve" sketch.  Ir's simple, just more expensive than I expected.</p>
 16087: <p>You can get sprinkler valves, that use solenoids, for under $20 that fit on plastic PVC pipe and are designed for water, such as these at <a href="http://www.sprinklerwarehouse.com/" rel="nofollow">SprinklerWarehouse</a>.  They typically use pipe sizes of about 1 inch.  </p>
