Most Canadians call it the country’s most valuable resource. Others label it “Blue Gold”. But call it what you like, there’s no denying our water supply is diminishing at an alarming rate. What is one of the biggest culprits? Outdoor Irrigation!

Only 1 per cent of the global water supply is freshwater available for human consumption. A staggering 85 per cent of this 1 per cent is used for irrigation. It is estimated 60 per cent of the water used in landscape irrigation is wasted due to overwatering and inefficient watering.
But comparatively recent innovations in the irrigation industry make it easier for business owners and managers to save water, money and human labour, something large water users such as golf courses and municipalities have been doing for years.

The Alberta Chapter of the Irrigation Association offers the following tips:

• Consider “smart technology: Climate or soil-moisture sensor-based controllers evaluate weather and/or soil moisture conditions and then calculate and automatically adjust the irrigation schedule to meet the specific needs of your landscape. Most current irrigation is run by pre-set timers. E.G. they water three times a week even if it has rained solid for several days.
• Consider low volume drip irrigation for plant beds: Install micro irrigation for gardens, trees and shrubs t irrigate slowly and minimize evaporation, run off and overspray
• Adjust sprinkler heads: Correct obstructions that prevent sprinklers from distributing water evenly.
• Inspect your system monthly: Check for leaks, broken or clogged heads and other problems.
• Adapt your watering schedule to the weather and the season: Adjust the watering schedule regularly to conform to current weather conditions.
• Water at the optimum time: Water when the sun is low or down, winds are calm and temperatures are cool – i.e. between the evening and early morning to reduce evaporation.
• Water only when needed: Watering too much and too frequently results in shallow roots, weed growth, disease and fungus

Smart controllers reduce outdoor water use by monitoring and using information about site conditions (such as soil moisture, rain, wind, slope, plant type etc.) and applying the right amount of water to maintain healthy growing conditions.

The City of Calgary is on the cutting edge of irrigation technology and uses the science of climate-based irrigation to reduce the time and costs associated with watering parks. Denis Gordeau the city’s water management co-ordinator, says Calgary’s automated irrigation system uses an average of 44% less water than traditional controllers.

Other benefits of “smart” technology include:

• Improved turf quality
• Reduced pesticide use
• Reduced staff costs
• Stronger and deeper roots
• Reduced carbon footprint
• Public recognition for going “green”
• Supports LEED certification
• Reduced fertilizer costs

Healthier landscapes are better landscapes with greener grass, fuller trees and brighter blooms. The best way to achieve healthier landscapes is to deliver the right amount of water when and where it is needed. Follow that rule and you will put money in your company’s bank account instead of puring it down the drain.
Bob Poole is Vice President of ExactET Systems Inc., Canada’s leader in climate controlled irrigation.

For information on Smart Controllers, click here