Thanks for the reply and advice Tom. I will go to the hardware store and ask the help to show me swing pipe.
I have an area with mature plantings that although they were designed with the spray of the heads in mind the ground cover is now too high for heads that pop up 3 inches. 12 inch pop ups would do quite nicely. I'm new to this. What is involved? I would like to know what to expect before I tear up the nice ground cover. I assume the pipe will not be much lower than the 3 inches of the pop up. Is there a trick of flexable pipe or something to go alongside and below the piping to twelve inches? Are...