Your system might be running fine — and still costing you money every month. Here’s what to watch for:
- Dry patches next to soggy areas — uneven pressure or a clogged head
- Water pooling near the controller box — slow valve leak most people ignore
- System running longer than 20 min per zone — usually a coverage overlap issue
- Grass greener along one edge only — heads angled wrong or a broken riser
- Spike in your water bill with no obvious cause — underground line leak
Any one of these can quietly add $30–$80 to your monthly bill. Most take less than an hour to fix.