Arvada, CO · Jefferson County · Two watering days, zero tolerance for waste
Irrigation Leak Detection & Repair in Arvada, CO
Two assigned watering days a week is the 2026 arithmetic in this city, and it changes what an irrigation leak means. A system bleeding water it is only licensed to spend twice weekly is not just wasteful. It is conspicuous, on your bill and on the utility's screens.
The System Above the Zones
An irrigation system has a spine before it has zones. The spine is the tap off the domestic supply, a shutoff, the backflow preventer standing guard between sprinkler water and drinking water, and the mainline feeding the valve manifolds. Spine leaks are the expensive kind because the mainline holds pressure around the clock, unlike zone laterals that only pressurize when their valve opens.
The backflow assembly deserves its own paragraph. It lives above ground by code, which in this climate makes it the system's designated freeze victim. A cracked backflow body or split test cocks are the most common spring finding on systems winterized late or not at all. It is also the one component whose function is public health, so its repairs are done to test-passing standard, not just drip-stopping standard.
Reading a System's Losses
Diagnosis starts at the meter with the domestic side isolated: movement then belongs to the irrigation spine. From there the manifold tells tales, a valve box full of water, a zone that hisses with everything off, a controller log showing runtimes nobody programmed. Smart controllers, standard in the new installations around Candelas, add flow sensing that flags anomalies automatically, and we read their history the way a mechanic reads engine codes.
Mainline leaks under turf get the buried-line locating treatment, and their surface evidence follows the watering calendar in reverse: wet on days the system never ran is the mainline's signature confession.
Repairs From Backflow to Manifold
Backflow rebuilds and replacements, mainline section repairs with proper thrust blocking at fittings, manifold and valve replacements, and wiring faults that keep zones weeping electrically shut or stuck open. Poly and PVC mains each get their correct fittings and primers. Every repair ends with the system run through a full cycle while we watch the meter, because an irrigation repair unverified by the meter is a hope, not a fix.
Zone-level work, heads, lateral lines, and the pressure mysteries inside a single circuit, continues on our sprinkler system page, same crew and often the same visit. The split between pages mirrors the split in the plumbing: this page owns the spine, that one owns the limbs.
Tuning for the Two-Day Reality
Restriction-era irrigation rewards precision. Cycle-and-soak scheduling lets this clay actually absorb instead of shedding runoff down the gutter. Pressure regulation at the zone level stops misting, which is water the wind takes before the lawn sees it. Drip conversions for beds spend water where roots are. None of this is a leak repair, and all of it shows up on the same bill a leak does, so we fold the tuning conversation into system visits for owners who want it.
The Arvada Reservoir system that feeds this city is managing a dry year, and the two-day schedule is the citywide symptom of that. A tight, tuned system stays comfortably inside the rules with turf that looks like it never heard of them.
Spring Starts and Fall Shutdowns
Half of irrigation damage is calendar damage. Spring startup done right pressurizes the spine slowly, walks every zone, and catches winter's casualties before they run unattended for a month. Fall shutdown blows the system down with regulated air before the first hard freeze, the single ritual that decides whether spring finds a system or a repair list. We run both seasons by appointment, and the fall calendar fills first, so October procrastinators should call (303) 552-3896 in September. Wet spots that ignore the system's schedule entirely belong first to the attribution work on our yard leak page.
Irrigation System Questions, Arvada
My water bill is high but the lawn looks normal. Could irrigation still be the cause?
Easily. A weeping mainline or a zone valve that never fully closes can lose volume that clay soil hides from the surface. The meter test with the domestic side isolated answers it in half an hour, and controller flow logs, where present, date when the loss began.
The backflow preventer sprays from the top when the system runs. Broken?
Discharge from the relief port can be the assembly doing its job during pressure changes, but sustained spraying means internal checks are fouled or a freeze cracked something. Either way it wants service promptly, since this is the component protecting your drinking water.
Is a smart controller worth it under watering restrictions?
For most systems, yes. Weather-based scheduling, flow anomaly alerts, and per-zone tuning pay for themselves quickly at restricted allotments, and the compliance convenience, watering days programmed once, is real. It will not fix leaks, but it will tattle on them early.
What does winterization actually involve, and can I skip a mild year?
Blowout pushes regulated compressed air through every zone until lines run dry, then isolates and drains the spine and backflow. Skipping it bets the whole system on the forecast, and this elevation loses that bet most years. The backflow alone usually costs more than a decade of blowouts.
Keep the Spine Tight and the Schedule Legal
Backflow, mainline, and manifold leaks fixed to meter-verified standard, with systems tuned for restriction-era watering.
☎ Call (303) 552-3896