Cut water bills and protect curb appeal If your water bill keeps climbing while some lawn areas stay dry, an irrigation audit can stop the waste and protect your property. According to UMass Extension , an irrigation audit is a comprehensive examination of an irrigation system that finds inefficiencies and recommends fixes to save water. Auditors check the controller, water pressure, sprinkler heads and nozzles, valves and piping, distribution uniformity, and landscape needs. SiteOne notes these components reveal where water is lost and where quick fixes deliver the biggest returns. The typical outcome is measurable water and dollar savings, a prioritized repair list, and clear programming upgrades you can phase in. In the sections that follow, you’ll see how audits are done, which tools and metrics matter, and how to turn findings into a phased action plan using smart-controller strategies like those in our irrigation controller programming guide . Turn audit findings into predictable water and cost savings Tired of big water bills while some turf stays soggy and other areas go dry? An irrigation audit turns that mismatch into a clear savings plan. Audits start by building a baseline from your utility bills and a physical inspection of the system. Irrigation auditing resources show auditors combine billing history with field measurements to calculate gallons saved and dollar savings. What auditors measure and why it matters On site, auditors measure flow rates, system pressure, and precipitation rate with catch can tests. These tests reveal how evenly water reaches the landscape. Distribution uniformity and measured run times let auditors estimate how much water is wasted by overspray, leaks, or poor coverage. That lets them translate fixes into gallons saved and dollar amounts. Typical results are meaningful. Professional audits commonly find 25 to 30 percent savings. In well‑tuned cases, properties have cut outdoor use by 30 to 60 percent. How Portland and Tigard rules change the savings picture Local seasonal rules matter. Portland asks for a voluntary 20 percent cut during the Summer Conservation Stage from June 1 to September 30. Mandatory curtailments can tighten watering frequency further. That means audits not only chase leaks and misaligned heads. They also optimize controller schedules to meet local timing rules and still keep plants healthy. Bottom line: audits use measured metrics plus billing comparisons to produce realistic gallon and dollar savings. Expect typical savings of about 25 to 30 percent. In some cases you can do much better, and audits help you stay compliant while protecting curb appeal. A practical, on-site audit you can follow Want a clear, step-by-step look at where your complex is wasting water? An on-site audit gives you that clarity and a prioritized fix list. Guidance from NCSU Extension's irrigation auditing guide describes the workflow below. Prepare: gather recent water bills and site maps, do a visual walk for leaks or overspray, and bring tools. Audits are most accurate on calm days. Map zones and inventory heads: sketch each irrigated zone, mark head types and valve locations, and note plant types or hydrozones for different needs. Pressure and flow checks: measure pressure at the furthest head with a gauge and use a bucket or flow meter to calculate flow rates. Catch-can uniformity test: place cans in a grid, run the zone, record volumes, and use those readings to calculate distribution uniformity. Controller and program review: check date/time, active programs, run times, and sensor inputs. Confirm schedules match plant needs and any local rules. Compile results: translate measured run times, uniformity, and flow into a report with gallons saved, priority repairs, and recommended schedule changes. Essential tools and what each measurement reveals Each tool reveals a different part of the picture. Resources like UMass Extension explain why you need them. Catch cans show how evenly a zone is watered and give the precipitation rate used to set run times. Pressure gauge readings reveal high or low pressure problems that cause misting, short throws, or premature wear. Flow meters measure real-time flow and total volume so you can detect leaks and build a usage baseline. Soil moisture sensors tell you actual water available to roots so you avoid unnecessary cycles and prevent plant stress. Evapotranspiration (ET) data ties watering to weather so schedules match real water loss instead of fixed timers. A valve locator, flags, and a stopwatch help map zones accurately and time zones consistently during tests. Follow these steps and tools to produce a clear, measurable audit report. That report is what turns observations into gallons and dollars saved. Turn audit findings into a prioritized, board‑ready action plan After an audit, start with the obvious water thieves: leaks, broken or clogged heads, and overspray onto pavement or buildings. Fixing those problems usuall
