- Sep 14, 2000
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Originally posted by: flot
Get a motion detector like you'd use for a nighttime proximity light. IE it is only triggered at a certain darkness level (or on a timer), and only triggered by motion close to the fence.
When it activates, hook it up to some high powered lawn sprinklers - but aim them sideways, from one end of the fence to the other.
That way, you (probably) wouldn't hit anyone on the sidewalk...but anyone getting close to the fence would get it. Side effect, you could just point them AT the fence, so that the fence would automatically be washed off.
The more I think about this, the better an idea it is. I have motion detector lights in my backyard, but motion detector sprinklers would be 100 times more effective at deterring people. I'm pretty sure I could rig it up so that when I'm home, the lights come on with motion. But when I'm away/on vacation, I could flip a switch and have it activate the sprinkler system instead. HMMMM. Added benefit, I dunno if you've ever been walking around at night when someone's sprinklers fire up, but the noise can scare the hell out of you if you're not expecting it.
That's a very interesting idea, I like the benefit of washing the fence.
Just wondering how you would get the sprinklers to come on when the lights come on? You'd need some kind of electric pump or a switch on the faucet or something, eh?
