On 11/05/2010 10:33 PM, Orchid XP v8 wrote:
> Think about how a transistor works: You have one circuit that controls
> another. So how hard would it be to rig up a valve where pressure from
> one pipe moves the valve allowing (or blocking) water from flowing
> through a seperate circuit? In principle it ought to be pretty trivial.
> (Of course, making a valve that actually works well in practise probably
> requires far more equipment than I personally have...)


You probably want a three port shuttle valve. Did you know that using 
pneumatics you can make amplifiers, integrators, switches etc.?

-- 

Best Regards,
	Stephen

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