Lawn Care Tip: Rain Sensors Can Save You Money

They absolutely can help save you money! But, what IS a rain sensor and how do they work?? A rain sensor is a device that prevents an irrigation system from running after a recent rain event has supplied sufficient moisture. Rain sensors can be mounted wirelessly or hardwired into an existing irrigation system. Sensors detect the quantity of rainfall and determine if your irrigation system needs to run. It is essentially a smart rain gauge communicates with the main control panel.

For example, if the irrigation system is set to run tomorrow at 4am and deliver .5 inches of water to your lawn, but during the night a giant rain storm comes through at midnight and supplies .75 inches of rain. The rain sensor signals the irrigation system and say, “Hey, buddy. How about you take the day off? Mother nature provided us with sufficient rain last night.” Your irrigation system would then be suspended until it was needed.

Watering Your Lawn After Rainfall Doesn’t Make Sense

How nice would it be NOT to see your sprinklers running at 7 am after a big rain event the night before? When sprinklers come on during or right after a large rain event it’s never a good look. With so much talk about conserving natural resources, it would be wise and economical to invest in rain sensors for your irrigation system. It can save water, money, and more importantly, keep your neighbors calm.

Now let’s talk dollars… For example, you’ve got your system set to run Mondays, Wednesdays, and Fridays. We have a giant rainstorm that provides sufficient rainfall for the entire week. Let’s say your system uses around $10 worth of water during each cycle. If you have a rain sensor installed, you’ve just saved yourself $30 in ONE WEEK! Now let’s say that happens 10-15 times over the course of the year. That’s more or less $125 saved!

Installing rain sensors sounds like a no-brainer to me. They definitely can help to conserve water and your hard earned dollars.

image: rain sensor via