Irrigation Systems · Loveland, CO · Larimer County
Irrigation Leak Detection & Repair in Loveland, CO
Trace the water and the system explains itself: house supply to backflow preventer, backflow to the always-pressurized mainline, mainline to zone valves, valves to the laterals and whatever they feed. Every leak in every irrigation system lives at one address on that map, and finding the address is the job.
The Mainline: Pressurized All Season, Guilty Most Often
Everything upstream of the zone valves holds pressure around the clock from spring startup to fall shutdown, and that makes the mainline the system’s most expensive place to leak. A mainline weep runs day and night whether or not a zone ever fires. It shows up as a water bill that climbed for no visible reason and, in time, as a damp stretch of ground that never dries.
The isolation test is clean: with every zone off and the system charged, watch the meter or a gauge on the mainline. Loss with no zones running convicts the mainline or a zone valve that will not fully seat. From there the locating runs like any buried pressurized line, and the fix is a marked-point repair rather than a trench.
The Backflow Preventer: Guardian, Victim, and Fall Deadline
The backflow assembly guards the drinking water from everything the watering side touches. That is why code requires it, and why it sits above ground where winter can reach it. It is the part winter reaches first. An assembly that skipped its fall blowout announces the fact at spring startup, spraying from a cracked body or a split bonnet the moment pressure returns.
Weeps at the relief port tell a different story: debris on a check seat, or honest internal wear asking for a rebuild. Rebuild kits, test cocks, and full swaps are all routine work. The seasonal bookends do the rest: a proper blowout before the first hard freeze, and a slow, controlled fill at startup. Those two visits prevent most of what this page describes.
Zone Valves and the Leaks That Only Run Sometimes
Downstream of the valves, water flows only when a zone fires. Those leaks keep the controller’s schedule and hide between cycles. A valve that seats poorly weeps into its zone continuously, producing the one mysteriously green stretch and the head-and-lateral symptoms detailed on the sprinkler hardware page. A solenoid or diaphragm failure holds a zone on, or keeps it from shutting. Telling an electrical fault from a water-side one takes minutes at the valve box.
Drip systems add their own quiet failures. Emitters pop off their barbs. Tubing gets chewed, or cut by aeration. Regulators fail and pass full line pressure into quarter-inch tube. Drip leaks waste less per hour and hide better than any spray zone, which evens out the damage.
An Irrigation City, Measured in Zones
Loveland landscapes lean on their systems hard. High-altitude sun, dry air, and watering-schedule rules pack the runtime into tight windows, so a system leak wastes water exactly when the meter watches closest. The heavily-landscaped golf-course streets around the Mariana Butte side of town run big multi-zone systems where one weeping valve hides among a dozen healthy ones, and zone-by-zone isolation is the only honest way through.
System-level service here also means the calendar work. Blowouts land ahead of the first hard freeze. Startups run gently, mainline filled slow. Every zone gets walked while it runs, because the cheapest leak is the one found in April instead of August.
What an Irrigation Call Looks Like
Bring the symptom: the bill, the wet spot, the zone that will not stop, the backflow spraying at startup. The visit isolates the system level by level: mainline first, then valves, then zones, until the loss has an address. Repairs run from rebuild kits to marked-point line fixes, priced before work starts.
Startup and blowout season books fast on the Front Range calendar, and freeze damage does not negotiate. (303) 552-3896 takes both the emergencies and the appointments, any hour.
✆ Call (303) 552-3896Irrigation System Questions
Should the irrigation system hold pressure all winter?
No. The fall blowout exists to empty the mainline, valves, and laterals with compressed air before the first hard freeze, because water left anywhere in the system becomes ice damage by spring. If your system has never been blown out, the first hard freeze is a deadline, not a suggestion.
One zone stays soggy even when the controller is off. Which part is that?
A zone valve that will not fully seat, letting mainline pressure weep into its zone around the clock. The valve gets rebuilt or replaced, a diaphragm and a few minutes in most cases. Left alone, it drowns the zone, feeds fungus, and pays the water bill's worst line item.
Is my backflow preventer required to be tested?
Many water providers require periodic testing of backflow assemblies by a certified tester, with results filed to the utility, and requirements vary by provider and connection type. Check what your provider asks; either way, an assembly that passes its test is also an assembly that is not leaking.
Can a leak be in the buried wiring instead of the pipe?
Wiring does not leak water, but a failed common wire or solenoid mimics hydraulic problems: zones that never fire look like supply failures, and zones stuck on look like valve leaks. The valve-box check separates electric from hydraulic in minutes, which is why it comes early in the sequence.