5 Signs Your Lawn Needs Professional Irrigation System Repair

The cost of ignoring irrigation problems

A malfunctioning irrigation system does more than stress the lawn. It wastes thousands of gallons of water and drives up the utility bill every cycle it runs, and the turf damage it causes takes months to grow back. Catching a problem in June costs a service call. Catching it in August costs a service call plus seeding.

Two local factors make this worse. First, freeze damage from the previous winter often does not reveal itself until the system is under pressure in spring, so a cracked fitting can sit and weep for weeks. Second, soils vary widely across our service area, from sandy ground around the Chippewa Valley that drains fast to heavy clay in parts of the Twin Cities metro that holds water at the surface. The same coverage error produces a dry spot in one yard and a soggy one in the other.

Sign 1: Uneven water coverage

Walk the property during a watering cycle and watch the system run. If some areas are soggy while others stay dry, there is a coverage problem: broken heads, incorrect spray patterns, or a zone that is not activating. Look for:

• Brown or yellow patches in areas that should be getting water
• Muddy spots or standing water in certain zones
• Sprinkler heads that spin in place without distributing water
• Visible gaps in spray coverage between heads
• Spray landing on the driveway, sidewalk, or street rather than turf

Heads drift out of adjustment on their own over a season. Mower wheels and foot traffic tilt them, mulch and soil settle around them, and plants that were small in May grow up and block the pattern by July.

Sign 2: A sudden increase in the water bill

A spike in a water bill without a change in usage is a reliable red flag. Underground leaks, valves stuck partly open, and zones running longer than programmed all waste water quietly. Even a small leak can waste 6,000 gallons in a month, and because the loss is underground there is often nothing visible on the surface to explain it.

A quick check: with every zone off and no water running in the house, watch the water meter. If it is still moving, something downstream is passing water.

Sign 3: Low water pressure

If heads barely pop up or spray patterns look weak and short, the system has a pressure problem. Common causes are a failing valve, clogged nozzles, a mainline leak, or a pressure regulator that has gone out of spec. Mineral buildup from hard water narrows nozzle openings gradually, so the decline is easy to miss until coverage gaps appear.

Pressure problems are worth diagnosing rather than compensating for. Adding run time to a low-pressure zone wastes water on the area closest to the head while the far edge still gets nothing.

Sign 4: The system will not turn on, or will not turn off

Controllers that malfunction and zones that will not activate point to electrical or solenoid problems: a failed solenoid, a damaged wire splice, a nicked wire from landscape work, or a controller that lost its program. A valve that stays open is the more urgent version of this failure, since it wastes enormous amounts of water and can flood a yard or a basement window well overnight.

If a zone will not shut off, close the main irrigation shutoff by hand and call. Do not wait for the next scheduled cycle.

Sign 5: Visible leaks or geysers

Never ignore water shooting up out of the lawn. That indicates a broken lateral line or a snapped head, and it needs immediate repair to stop the water loss and prevent the washout and settling that follow. Broken heads are common along driveway and sidewalk edges, where plows and snow loads catch them over the winter.

What a repair visit involves

A technician runs every zone and watches it operate before touching anything, because most problems are visible in the first pass. From there the work is straightforward: locate and repair the break, replace failed heads and nozzles, reset arcs and radii for even coverage, test the valves and solenoids, check the backflow device, and reprogram the controller for current conditions rather than whatever it was set to in May.

If you are seeing any of the five signs above, our irrigation crews service systems across the Eau Claire area and the Twin Cities. Call 888-839-8484 or request a quote.