Calculating if garden needs watering ...

[BraveSirRobbin]

Does it matter if I use RubberMaid or Gladware?

Now how am I going to make any money off of this if I post ALL of my trade secrets! :lol:

Seriously though, it really does work. The trick is to get the wires close together and a large area so the "first" raindrop will cause a low resistance to form between the two wires, thus tripping the PowerFlash.