Where the stain is tells you a lot
| Stain location | Most likely source |
|---|---|
| Walls, driveway, pool deck where sprinklers hit | Iron in irrigation well water |
| Toilet tanks, sinks, laundry | Iron in the supply, a well, or corroding plumbing |
| Hot water only, brownish | Water heater sediment or corrosion |
| Around outdoor metal fixtures | Corroding metal, not necessarily the water |
Irrigation in Hillsboro Beach
The Town of Hillsboro Beach's rate schedule has separate domestic and irrigation categories, which tells you many properties irrigate with treated town water. That water rarely stains. Properties that use their own irrigation well are different: that groundwater is untreated and can carry iron. Broward County requires a Department of Health permit for wells 12 inches in diameter or smaller, irrigation wells included, so your property records may show whether a well exists.
What the Department of Health says about iron
The Florida Department of Health's fact sheet on well odor and staining explains that iron bacteria combine iron and oxygen into rusty, slimy deposits. They can cause yellow, orange, red or brown stains, and they are not commonly known to cause disease. They can also clog well pipes and pumps.
Treatment options
- Irrigation well: iron treatment on the irrigation line, or switching that zone to town irrigation water if practical.
- Drinking well: a well water system configured from the test, often oxidation plus filtration.
- Plumbing or heater: a plumber's repair, not a filter.
- Existing stains: cleaning products made for rust stains; prevention keeps them from coming back.
Prevention once the source is known
If the stains come from an irrigation well, adjust sprinkler heads so they do not spray walls, windows and the pool deck, and run zones only on the days Broward County's two-day schedule allows, which the town's Water Restrictions page lays out by address. Less overspray means fewer new stains while you decide on treatment. If the stains are inside, note which fixtures show them first; toilet tanks and the laundry tub are often where iron shows up earliest. That information points straight to the source when Jorge tests.
Indoors, rust-colored water right after a plumbing repair or a main break nearby is usually short-lived sediment; run the cold water until it clears. If it keeps coming back, test.
Test before buying anything
Jorge tests iron, pH and hardness at your tap and, if you have one, at the well or sprinkler line. If the source is a pipe or the heater, he will say so. Call, text or WhatsApp (305) 793-5974. Related: well water in Hillsboro Beach, rotten-egg smell.
https://www.townofhillsborobeach.com/372/Water-Rates
https://www.townofhillsborobeach.com/476/Water-Restrictions
https://broward.floridahealth.gov/programs-and-services/environmental-public-health/water-well-construction/
https://www.floridahealth.gov/wp-content/uploads/2025/08/well-water-facts-odor-staining.pdf
Updated 2026-10-17 · Living Waters · Jorge Canela, Water Quality Specialist