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In the last few years, FM wireless rain sensors have become very popular. Although they are more expensive than the wired devices, the ease of installation and increased placement options offset the cost. Most wireless units come with by-pass switches built into the device. Some digital controllers also offer by-pass options for both wired devices and wireless rain sensors.
No matter the type of rain sensor type that you choose, all rain sensors offer many advantages over not adding this detector to your automatic sprinkler system. Some of the immediate and long term benefits include:
• Saves Money. Whether you pay for city water or spend electricity running a pump, the money you save over time will more than pay for the rain sensor.
• Extends Sprinkler System Life Span. Irrigation systems are made up of moving parts. If the system parts are utilized less frequently (during the rainy season), they last longer.
• Protects Water Resources. By limiting the over use of your sprinkler system, rain sensors reduce excess water run-off that carries fertilizers and pest control chemicals into our shared water supply.
• Conserves Water. Less water is wasted when less supplemental water is needed for your turf and in your garden.
How much money can you save with a rain sensor device?
It will vary based on your water source (city, re-claim, or well) and where you live (water costs, electrical rate, climate). Here is one example that demonstrates the benefits listed above:
Seminole County, Florida.
System Description:
• Designed to irrigate a quarter acre of grass and programmed to apply ½” of water every time the system runs.
• This schedule would equal 6,788 gallons per irrigation cycle.
• This system (on City Water) pays $2.30 per thousand gallons.
• Every time the rains sensor interrupts a sprinkler cycle, you would save $15.61
According to a recent study in Florida, the use of a rain sensor device averaged a 45% savings in water for single-family residential water usage.
The next time you see a sprinkler system running in the rain, you now know it doesn’t have to be that way. Rain sensors are affordable solutions to conserving our water, protecting our water resources, and saving you money.
Craig Borglum CIC/CID/CLIA is a Certified and Licensed Irrigation Specialist in Central Florida. More information and articles on how-to irrigation solutions, click on sprinkler repair. A comprehensive Lawn Sprinkler Repair DVD is available at http://www.IrrigationRepair.com