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Step 3Parts: The Electrical Bits
In order to activate the solenoids to let the water flow through them, we're going to need some sort of switch or pedal. Again, I went to eBay and found this one for about $9. If you have the talent, it wouldn't take much effort to make up your own pedal, but for this project I decided to go with a pre-made pedal.
You're also going to need some wire. I had some spare speaker wire sitting around, and it was perfect for this project. I used about 12' of it, but that gave me plenty of slack to reposition the pedal.
Finally, you're going to need a power source. For this Instructable I used a pair of battery holders (one that holds 2 AA batteries, and one that holds a 9v battery (giving us 12V)). You can find these at Radio Shack or Fry's, or a similar store. You can also use a 12V DC adapter (a.k.a. "wall wart") if you'd prefer. The instructions will be the same, regardless, but if you use a 12V adapter, make sure you have a GFCI outlet installed.
You're also going to need some wire. I had some spare speaker wire sitting around, and it was perfect for this project. I used about 12' of it, but that gave me plenty of slack to reposition the pedal.
Finally, you're going to need a power source. For this Instructable I used a pair of battery holders (one that holds 2 AA batteries, and one that holds a 9v battery (giving us 12V)). You can find these at Radio Shack or Fry's, or a similar store. You can also use a 12V DC adapter (a.k.a. "wall wart") if you'd prefer. The instructions will be the same, regardless, but if you use a 12V adapter, make sure you have a GFCI outlet installed.
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