Do you know how important backflow prevention is on your irrigation system? Think about it like this: you fertilize your lawn, plants, etc. This seeps into the ground and can get into your irrigation lines. So, without a device to prevent that water from "backflowing" into your drinking water, you could end up drinking fertilized water which wouldn't be good. If you have a system installed after 2005, the law in Georgia says you should have backflow prevention. Check to see that you do as many systems don't particularly those installed as part of a builder package.
