Leaning, broken, or damaged sprinkler heads
The Most Common Cause
Specifically the lawn mower tires running the sprinkler heads over and over each time the lawn is cared for. Knocking the sprinkler heads from their preset position little by little. It's impossible to know exactly where the sprinkler heads are to avoid them with the mower tires when they can't be seen.
Now they can be seen when approached upon!
The Solution - Sprinkler Buddy
I'm the lawn care professional that invented the Sprinkler Buddy. If you have had enough of sprinkler head repairs/adjustments, or the cost of having them done, Sprinkler Buddy is the solution. Keeping the sprinkler heads visible during routine lawn maintenance is the key to eliminating most all of the issues listed above. My product requires the least amount of maintenance long term, due to its patented insert design. No matter what type of pop-up sprinklers you prefer, Sprinkler Buddy can be custom fitted to fit your needs like no other product of its kind.
Sprinkler Buddy can also be custom fitted to go along sidewalks, walls, etc...