It's sad that I need to lock up my water. At first, I thought a random kid turning it on was all I had to worry about. Then I saw a neighbor using another's water to wash their car AND their full size van! Then another one said his water got shut off (for non-payment I'm sure). I figured he'd be stealing MY water soon. I chose this one because A: it looks better than the ones that use a padlock and B: because by the time you buy one of those AND a padlock, it costs almost as much as this one.
I was worried it would not work with the backflow preventer, but it goes on fine. Now I have to find a way to lock the electrical socket because a neighbor says that same guy likes to plug his power tools in your outlet and work on his car!