SPRINKLER TALK FORUM - You Got Questions, We've Got Answers

Hello
I know that I can turn the screw clockwise on top of the nozzle in order to close the flow of water, but for some reason I have 2 that still spurt out water despite tightening that screw. I also know that, if I wanted, I could dig around the area, remove the riser, and screw in a threaded pvc cap. If I do that and I want to re-enable that nozzle in say 4 years, I will have no way of locating where that cap is.

Is there some female threaded "cap" that can be screwed into the riser in place of a nozzle?
I guess I could remove the riser, screw in a 4 inch riser pipe and cap it. In 4 years it should be less difficult to locate that white cap. No?

thanks