STAFF JULY 19, 2016

The universe of water information seems to be expanding as the reliable supply of water appears to fluctuate, and often it’s difficult to decide which way to turn when you’re planning for future use. Manufacturers of irrigation equipment can help you determine your infrastructure needs, but where does the water come from in the first place? Should you turn to your utility, or are you fortunate to have access to — and rights to — a natural supply?
We’ve gathered here a collection of resources to help you find the info you need. There are links to calculators, association references and product information blurbs… all at your fingertips.

Water Associations

Often a good source for networking and educational opportunities, associations offer help with water supply calculations and needs assessments. Your local utility is a good place to start, but check out the associations we’ve listed below to see if there’s an appropriate fit.

  • American Water Resources Association
  • American Water Works Association
  • Association of Metropolitan Water Agencies
  • International Water Association
  • Irrigation Association
  • National Groundwater Association
  • National Rural Water Association
  • National Water Resources Association

Water Use Calculators

There’s a wealth of easy-to-use, online calculating programs to help determine water use and to plan water savings—many of which address in-home, consumer use. For smaller properties and production programs, these may be adequate. But for larger commercial properties and for mass production, you need a professional’s tool. We’ve found a few, which we’ve listed below.

Your irrigation equipment manufacturer and distributor, however, likely will help you determine the best rates and optimal operation.

Water Footprint Extended Calculator
Developed by
Calculate your company’s water footprint.

Drip Calculator
Developed by American Water Works Association
This calculator estimates the daily, monthly and annual waste from a leaky fixture.

Water Flow Rate through Piping
Developed by
Using the variables of pipe grade, pipe size, and water velocity, this tool calculates the water flow rate through piping.

Garden Hose Flow Rate and Time
Developed by Washington State University
This tool provides the flow rate through a residential garden hose based on the inputs of hose size, hose length and supply pressure.

Drip Line Rate
Developed by Washington State University
This tool calculates water application rates of drip irrigation lines.

Pipeline Pressure Loss
Developed by Washington State University
This tool estimates the water pressure lost in a pipe while factoring in variables such as material, flow rate and inside diameter.

Irrigation Meter Calculator
Developed by University of Nebraska
This calculator estimates the number of inches of irrigation applied to a specific area.

Flow Units Converter
Developed by The Engineering Toolbox
This tool quickly converts between flow units including gallons per minute, liters per minute, cubic feet per minute and more.

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