On Tue, Jun 17, 2008 at 9:21 PM, Justin Richards wrote: > 3. Use a windscreen washer pump and a solenoid. This is not a bad > idea but I cant seem to find small solenoid valves and havent > experimented (as I have none) to see if they significantly restrict > flow. Most of these that I can source are desgned for irrigation and > as such the pressure they control would be quite high compared with > what a windscreen pump can deliver and not sure if they would work at > all. I'm not sure what's used on your side of the world, but over here clothes washing machine repair shops are a great source of small solenoid valves. Another option might be a lawn sprinkler supply. Josh -- A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools. -Douglas Adams -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist