The answer to 'sprinkler system weeds' is that weeds growing around your sprinkler heads are a common problem that can be caused by several factors, including poor drainage, soil compaction, or improper sprinkler head positioning. Weeds around sprinklers can clog the heads, reduce water coverage, and lead to uneven watering across your lawn.
To address this issue, you can try adjusting the sprinkler heads to ensure proper coverage, aerating the soil to improve drainage, and applying a pre-emergent herbicide to prevent weed growth. If the problem persists or you're unsure of the best approach, it's recommended to call a professional landscaper or sprinkler system specialist to diagnose and resolve the issue.