If I didn't know better, I'd think you were in my front yard! You describe the situation very well. As a matter of fact, my gardeners were over on Saturday and supposedly fixed a few of the sprinkler heads. Come to think of it, the lid for the sprinkler box was open when I went over to check things out. I think I'll make a call to my gardener tomorrow and find out what the heck he did. Thanks!
Now that I've used the term anti-siphon, I actually can't confirm what type of valve is in the ground. Any ideas on how to determine what type of valve I have before I pull it out? It is in a box in the ground, which makes it pretty dang hard to find any numbers, especially if I don't know what I am looking for.
I have three zones, therefore, three valves. I don't know what a double check or PVB valve is. What additional features do these valves offer over a standard anti-siphon valve?
I have a Water Master anti-siphon valve. It is in the ground, so I can't see a model number. The leak is coming from the side of the valve that has 8 silver metal screws and one small black plastic knob (not the big knob on top that turns easily, but the smaller one that doesn't seem to turn very easily). The water is spraying from the small black knob. The result, aside from filling my valve box with water, is that the sprinklers on that valve are alway on. Any ideas on what is wrong with my va...
