What typically needs to be done
- Spring startup should pressurize the irrigation system slowly, check the backflow device and main valves for leakage, then run every zone one at a time.
- Each zone is checked for broken or sunken heads, leaking valves, clogged nozzles, poor spray pattern and heads that water pavement, windows or siding.
- The controller schedule, rain/freeze sensor (if present) and seasonal run times are reviewed after the physical system is working properly.
What you can check or prepare yourself
- Walk each zone while it runs and mark damaged heads with a flag so they are easy to find after the water is off.
- Watch for unusually wet spots, bubbling soil or a meter that continues to move when irrigation should be off, which can point to a hidden leak.
- Adjust only user-serviceable heads/nozzles according to their instructions and keep spray away from the home.
Step-by-step reminder
- Open the water supply slowly according to the system instructions.
- Run each zone and look for broken heads, leaks and poor coverage.
- Adjust heads so water stays off siding, windows and pavement.
Before you start
Review the manual for the exact appliance, system or material in your home before opening panels, disconnecting utilities, changing settings or using chemicals. Model-specific procedures and local installation details can differ from a general guide. Shut off power, water or fuel only when the manufacturer procedure calls for it and you are comfortable identifying the correct control. Stop if the condition you find is different from what is described here.
When to bring in a professional
A homeowner can often handle the routine checks above when the equipment manual allows it. Bring in a qualified professional if you cannot safely access the item, find leaks/damage, cannot identify the correct part or shutoff, encounter electrical/fuel/structural work, or the manufacturer instructions differ from this guide.
This guide is general information, not a home inspection or a guarantee that a procedure is suitable for your specific equipment or conditions. Follow manufacturer instructions and applicable codes, stop if anything appears unsafe or different from the guide, and use a qualified professional when appropriate. Read the site terms and limitations.