The kind they have in the doctor's office. It would make a nice accessory to my new darkroom sink. New, they are $$$$$$. Anyone know where I can get one used?
Maybe all I need is the valve setup itself?
hmmm......I'll look into it.
I found a foot pedal valve set on ebay but it's still kinda pricey and I don't know (without holding it in my hand) what else I'd need to complete it.
Fairly pricey, as these are commercial quality and very well made, but you can often find their stuff on ebay relatively cheaply. Look in the Industrial lab equipment or commercial plumbing sections (or just search for "chicago faucet").
Look out -- the valve is NO: Normally Open. The water flows when the power to the valve is off. You can wire it up so pressing the footswitch turns the power off to the valve, but be sure to turn the water off manually when leaving the darkroom.