How Do Sensors Work?

A sensor stops your sprinkler system from watering your lawn when it’s already raining. It not only helps conserve water and reduce your water bill but prevents the stress of keeping the sprinkler system on when it’s not needed.

Are you wondering how sensors work? This depends on the type you have. For example, a rainfall collection cup sensor stops the sprinkler from turning on when the rainfall cup or water collection basin fills with rainwater to a certain level. On the other hand, a hygroscopic disk rain sensor operates through a gauge attached to the sprinkler system. The gauge has a disk inside made with a synthetic material similar to cork that expands when it absorbs water. As a result, a message is sent to the sprinkler system controller that switches it off.

Why Choose Green Valley Irrigation

At Green Valley Irrigation, we provide custom solutions for our customers’ individual irrigation needs. Our wide collection of irrigation and sprinkler systems and accessories help you achieve a lush, well-irrigated lawn. When you entrust us with your lawn care, you get:

  • ● Peace of mind knowing your lawn will be watered well
  • ● Savings on your water bill
  • ● Professional installation, repair and maintenance
  • ● Superior customer support
  • ● Comprehensive services at reasonable rates

Green Valley Irrigation installs and repairs automatic sprinkler systems on Toronto, Brampton, Oakville, Mississauga, Thornhill, Richmond Hill, Burlington, Vaughan, Caledon, Etobicoke, Bolton, Palgrave and surrounding properties

If you want to know more about our products or services, please contact us at