Connection and backflow preventer
The tie-in to the building supply and the backflow device are inspected.
Local FocusOak Park, IL
ApproachNon-Invasive First
Service ZIPs60301 – 60304
Questions?(708) 221-8167
Quick Answer
How do I know if my sprinkler system is leaking?
Signs include soggy patches in the yard, low pressure at sprinkler heads, heads that keep running after the zone shuts off, and a water meter that moves while the system is off. Running each zone separately while watching the meter shows which zone is losing water.
What an Irrigation Leak Check Covers
The check follows the water from the connection to each zone.
Zone valves
Each valve is tested for sticking, weeping and diaphragm failure.
Heads and lateral lines
Heads, risers and buried lines are checked for breaks and clogs.
Controller and sensors
Schedules and rain sensors are reviewed for sensible settings.
Irrigation Leaks in Northern Illinois Yards
Irrigation systems in northern Illinois are used from spring to fall and then drained for winter. The two times they most often develop leaks are at spring start-up, when pressure returns to lines that may have frozen, and mid-season, when a mower or foot breaks a head.
A common failure is a zone valve that does not fully close. The zone keeps weeping into the soil, and since it is underground you may not see it for weeks. A meter test with the controller off is the fastest check.
Many leaks can be prevented with seasonal care. Read our guide on how to maintain your irrigation system to prevent leaks, and for leaks in the buried supply pipe, see underground water line leak detection. Outdoor faucets and hose bibs are covered in exterior leak detection.
How Irrigation Leaks Are Found
Zone by zone.
01
Meter baseline
With the system off, confirm the meter is still.
02
Run each zone
Run zones one at a time and watch for pressure drop and wet spots.
03
Inspect heads and valves
Look for broken heads, clogged nozzles and weeping valves.
04
Pinpoint
Listen along lines and mark suspect areas.
Tools and Methods for Irrigation Leaks
Equipment
Pressure gauge
Checks pressure at the connection and zones.
Flow meter
Measures flow per zone.
Ground microphone
Listens for leaks in buried lines.
Locator
Traces lines when plans are missing.
Methods
Zone isolation
Closing valves to isolate leaks.
Meter test
Detects leaks in the whole system.
Visual survey
Wet spots and sunken areas.
When to Check Irrigation
01
You see soggy ground when the system is off
What happens: The valves and lines are checked.
→ The leak is found and repaired.
02
Water use jumped in summer
What happens: The meter is compared with system schedules.
→ You know whether irrigation is the cause.
03
A head runs after the zone ends
What happens: Valve and line drainage are checked.
→ Wasteful drainage is stopped.
Irrigation in Oak Park Yards
Yard layouts vary in the village:
Neighborhoods We Serve
Larger lots with more zones.
Streetscape plantings and mature trees affect line routes.
Smaller lots with compact systems.
Local Conditions We Plan For
Spring start-up
Pressure returning can reveal winter damage.
Backflow protection
Irrigation connections require backflow prevention devices.
Mature trees
Roots can displace lines and heads.
Irrigation Myths
Problems Irrigation Detection Solves
Hidden waste.
Problem
High summer bills
A leaking zone wastes water.
How It’s Handled
Zone tests find it.
Problem
Dead or soggy areas
Leaks can drown roots.
How It’s Handled
Repair restores even coverage.
Problem
Low pressure
Leaks reduce pressure.
How It’s Handled
Tests identify the loss.
Benefits of Irrigation Leak Detection
Save water and landscape.
Lower water use
Stop silent losses.
Healthier lawn
Even coverage.
Protected foundation
Avoid soggy soil by the house.
Better planning
Know your system's condition.
Choosing an Irrigation Professional
LeakFix Oak Park does not perform irrigation work. Independent contractors do; verify license and insurance.
- Ask about backflow preventer testing and requirements.
- Ask for a written description of repairs.
- Ask about winterization services.
- Ask about smart controllers and rain sensors.
- Confirm permits where needed.
Frequently Asked Questions
Straight answers about irrigation system leak detection in Oak Park.
How do I test my irrigation system for leaks?
Turn off the controller, read the meter, then run one zone at a time while watching pressure and wet spots.
Why do sprinkler heads leak after the zone shuts off?
Low-point drainage or a valve that does not fully close can cause it.
When should I winterize my irrigation system?
Before the first hard freeze, drain or blow out the lines.
Does my irrigation need a backflow preventer?
Irrigation connections to potable water typically require backflow protection; confirm local requirements.
Can a sprinkler leak raise my water bill?
Yes, because the water passes through the meter like any other.
What if the leak is in the main supply?
Related Services
Exterior Leak Detection
Check outdoor faucets, buried lines, irrigation tie-ins and wet spots in the yard.
View Exterior Leak DetectionUnderground Water Line Leak Detection
Find leaks on the buried service line from the parkway valve to your building.
View Underground Water Line Leak DetectionPool & Spa Leak Detection
Separate evaporation from real leaks and locate pool, spa and plumbing leaks.
View Pool & Spa Leak DetectionPreventative Leak Maintenance
A seasonal checklist for hoses, valves, water heaters, sump pumps and outdoor plumbing.
View Preventative Leak MaintenanceHelpful Guides
Read more about this topic on our blog.
Where We Help in Oak Park
Irrigation System Leak Detection is available across all four Oak Park ZIP codes: 60301, 60302, 60303, 60304.
Contact LeakFix Oak Park
Tell us what you are seeing — a damp spot, a high water bill, a sound in the wall — and we will point you to a local leak detection professional who can look at it.
LeakFix Oak Park
Phone
(708) 221-8167Address
439 Madison St
Oak Park, IL 60302Service ZIP Codes
60301, 60302, 60303, 60304
Oak Park, Cook County, Illinois