Maintenance
Part of Smart irrigation planning: measure demand, hydrozone, then set run times
Smart irrigation maintenance: what to check and when
A practical smart irrigation maintenance plan: pressure checks, seasonal schedule changes, sensor testing, winterizing, and what to record each time.
Automation removes the daily decision, not the annual one. A smart irrigation system still drifts: nozzles clog, a head gets clipped by a mower, a sensor battery dies quietly, and a schedule set in May keeps running in October. This is a maintenance plan built around that reality, organized by how often each task is actually worth doing.
What to take away
- Monthly walkarounds catch the faults that cost the most, and they take about fifteen minutes.
- Service pressure has a target range, and drifting outside it changes how every nozzle behaves.
- Sensors need testing, not trusting. A rain shutoff that has failed reports nothing at all.
- Write the date on every check. A maintenance log is what turns a warranty claim into a paid claim.
Monthly, during the watering season
- Run each zone in daylight for two minutes and watch it. Look for heads that do not rise fully, tilt, or spray onto paving.
- Flag anything broken instead of trying to fix it on the spot, then repair the flagged items in one pass.
- Check valve boxes for standing water, which usually means a seeping valve.
- Confirm the controller is on the schedule you think it is on, not on a manual override somebody left running.
Twice a year: pressure and the whole-home check
Pressure is the quiet variable. EPA's home maintenance guidance states that water-using fixtures work best with incoming service pressure between 45 and 60 psi.
It describes how to test it with an inexpensive gauge on the hose bibb with everything else turned off, and advises having a professional adjust or fit a pressure-regulating valve if the reading is much higher.
The page recommends comparing a monthly bill against the same month last year as a leak signal. Sign up for utility leak alerts where they exist, and check any leak detection or flow monitoring system once a year to confirm it still works.
Add the sensor test to this visit. Wet a soil probe by hand and confirm the controller reports the change. Trigger a rain shutoff manually. Replace batteries on a schedule rather than on failure.
Seasonal schedule changes
| Season | What changes | Typical action |
|---|---|---|
| Early spring | System comes back into use | Slow pressurization, zone-by-zone inspection, catch test |
| Peak summer | Demand doubles or more | Verify the controller is raising run times, not you |
| Early autumn | Demand falls fast | Confirm the seasonal reduction happened |
| Late autumn | Freeze risk | Shut off, drain or blow out, disable the schedule |
One task is not on the calendar at all: responding to a restriction. EPA's page on drought and water efficiency notes that drought occurs somewhere in the country every year.
It notes that utilities may ask customers to limit outdoor watering or impose other restrictions, and that the first advice during one is to follow those rules and hunt for leaks. Build this into the plan: know where your controller stores permitted watering days, and test it once a year rather than during a heat wave.
Winterizing without guessing
Where it freezes, water left in pipes, valves, and backflow devices is a repair bill waiting for a cold night. The method depends on your system and local practice: draining, manual blowout, or automatic drain.
Compressed-air blowout is where most damage happens when it is done wrong, so it is a reasonable place to hire the work. Turn the controller to off or rain setting rather than pulling power, so the schedule survives.
Keep every check in one log with dates and readings. Then compare against the tests in our guide to proving the system works, and revisit the zone design from the planning sequence if the same zone keeps causing trouble.
