Half of my back is ran by one single zone. In the corner of my backyard the terrain slopes downward to my neighbors back yard and I just know that water from one fan sprinkler head is flooding into their back yard.
How would I stop this one single fan spray style head from operating? I thought it would be as simple as buying a new sprinkler head that is just a cap that little stem that pops up instead of a fan spray head so it essentially caps it off like a soda bottle.
When I went searching the internet for this item, I couldn't really find anything that fits what I envisioned.
Does such an item exist? I don't want to dig into the ground and cap it off at the main line in case I want to use it in the future.
If it isn't apparent already I have next to zero knowledge working with irrigation systems, but I'm learning as I go.

Thanks for your help!