Lawn Irrigation Systems and Backflow Testing
Lawn irrigation systems should be tested annually to ensure they are functioning properly. For example, if a backflow device attached to a lawn irrigation system malfunctions, animal excrement, pesticides, fertilizers and other harmful substances can be back-siphoned into a water supply. This contaminated water remains in water lines until drained from another source or fixture in the home. A serious health hazard can result when contaminated water is used for drinking, cooking or bathing.