Why does Florida well water stain (rust) buildings, curbs, sidewalks, driveways, and cars?
Florida well water often contains high levels of Iron Sulfide (rust), and other naturally occurring minerals. The amount of Iron Sulfide in your well water can be measured in parts per milllion (PPM). When your sprinkler irrigation system turns on and the water comes in contact with the air, the iron sulfide (rust) oxidizes, causing the rust staining.
