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As water scarcity and resource management have become increasingly critical, getting the most timely, accurate readings available from those meters is becoming more important than ever.

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Propeller flow meters have long been a crucial tool for agricultural irrigation management. As water scarcity and resource management become increasingly important, getting the most timely, accurate readings from meters is more important than ever. Here is how growers and water conservation districts (WCDs) are getting the best of both worlds.

Satisfying Two Needs with One Resource

Tracking water consumption within a watershed or aquifer region requires a centralized organization to monitor data shared from a variety of water consumers. Regional water boards or WCDs serving that function depend on metering at individual pumping locations to reflect the cumulative volume of irrigation water being used. The frequency and timing of that data collection has a big impact on its practical use.

  • Agricultural Users. Growers want to provide every drop of water needed to produce optimum crop yields — but not a single drop more! U.S. Department of Agriculture (USDA) trends in water use and on-farm irrigation efficiency show that growers are using technical innovation for more efficient irrigation. Today, propeller meters with integrated wireless transmission capability can document water usage, rainfall, and soil moisture data — without requiring travel to the field — and put valuable data at the growers’ fingertips via a secure server with password-protected web access.

  • WCDs. Coordinating watershed impacts, particularly during times of water scarcity, depends on collecting as much timely data as possible. The ability to analyze that data throughout the growing season, instead of only at the season’s end, can make the difference between managing water resources for a successful crop vs. incurring overuse penalties. Growers willing to collect and share data automatically with their local WCD via a telemetry-enabled water meter can help both parties better manage water information and irrigation.

Harvesting Huge Benefits with Modest Investment

Timely access to exact water-usage data without a visit to the fields for meter reading provides cost-saving and resource-management benefits:

  • Curb Overwatering and Minimize Waste. Accurate meter readings, complemented by the ability to adjust irrigation schedules according to rain-gauge or soil-moisture readings, optimize both the cost and the horticultural balance required for maximum crop yield.

  • Save Money and Effort while Protecting Limited Resources. Eliminating meter-reading field trips optimizes staff deployment, equipment logistics, travel time, and fuel expenses. Water consumption tracking enhances the ability to build up water reserves against subpar rainfall or drought.

Easy Access for Remote Use

  • Communication: Both cellular and satellite data transmissions are available to provide communication, no matter how remote the location.

  • Proven Performance with Long Life. Propeller meters handle both clean and dirty water sources equally well — even water from ponds, canals, or streams with higher rates of solids. Lithium-battery-powered units transmit data to a secure user interface, providing up to four years of daily water readings.

  • New or Retrofit. Available preassembled on new propeller meters or as retrofittable units for propeller meters that have been in service for decades.

  • Add-Ons. In addition to providing accurate and up-to-date water consumption data, built-in telemetry units can accept other electronic inputs that empower growers to optimize control without repetitive trips to remote field locations:

  • Rain gauges track natural water accumulation to reduce the need for irrigation from groundwater or surface water sources.

  • Pressure gauges provide important diagnostic information to monitor pump operation and ensure uniform coverage of the irrigation pattern across a field.​​​​​​

  • Soil-moisture sensors manage irrigation based on actual water need vs. a predetermined schedule.

  • User-Programmable Operation and Mobile-App Accessibility. A dashboard-style interface makes it easy to manage system operation and monitor data through any web-enabled device, including Android and iOS mobile apps.

Helping Growers and WCDs Succeed

For WCDs, having accurate snapshots of water use throughout the year is more useful than having to wait for an end-of-season report when it could be too late to protect a stressed aquifer. That is where a retrofittable telemetry solution can deliver a very affordable, yet valuable, benefit for existing propeller meter installations.

Some WCDs interested in incentivizing growers to adopt the electronic transmission approach offer cost-share programs to achieve that goal. Additional funding might be available through other government sources such as a state Department of Water Resources, a state Department of Natural Resources, or the federal Bureau of Reclamation Water Smart Grants.

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