The answer to 'why is my sprinkler system erosion' is that sprinkler system erosion is a common issue caused by water pressure, soil type, and improper installation. Symptoms include sunken sprinkler heads, exposed pipes, and wet or muddy areas around the sprinklers. Solutions can include adjusting water pressure, adding soil amendments, or repairing damaged pipes and heads. For more severe issues, it's best to call a professional landscaper to diagnose and fix the problem.
Sprinkler system erosion is often caused by high water pressure that can displace soil over time. This is more common in areas with clay or sandy soil that don't hold up well against constant water flow. Improper installation, such as not burying pipes deep enough or not properly compacting the soil, can also lead to erosion issues down the line.