Orange & Rust Stains From Water in Sunrise

Outside stains: the sprinkler pattern tells the story

If the orange marks follow the arc of your sprinklers on the stucco, fence or sidewalk, the irrigation water is the cause. Many South Florida properties irrigate from their own shallow well instead of city water. That groundwater has not gone through the city's lime or membrane softening, so dissolved iron oxidizes when it hits air and sunlight and leaves a stain.

Inside stains: fixtures, toilets and laundry

• Private drinking well: iron often comes with a sulfur smell; see rotten-egg smell in Sunrise.
• City water home with old galvanized or iron pipe: brief discolored water after the water sits unused can come from pipes inside the house.
• During city flushing: the city notes that temporary discoloration can happen during its spring free-chlorine period, and asks customers to run their faucets to clear it.

Treatment options for irrigation wells

• Iron filtration or oxidation before the sprinkler zones, for wells with significant iron.
• Rust-prevention injection systems, which keep iron in solution so it stains less.
• Switching irrigation zones to a different source, where practical.

The right option depends on the iron level, pump size and number of zones.

Treatment for drinking wells

If iron is in a well that supplies the house, Living Water configures a well water system from that well's test: typically oxidation and filtration for iron and sulfur, softening if hardness is high, and other stages as the test indicates. See well water treatment in Sunrise.

What to test

Iron, manganese, pH, hardness and hydrogen sulfide at the well, and the same at a city tap for comparison. Jorge does this during the free visit. For drinking wells, the Florida Department of Health recommends lab testing for bacteria and nitrate as well.

Removing existing stains safely

Iron stains on stucco, pavers and pool decks are usually removed with an oxalic-acid-based rust remover made for the surface. Test a small hidden area first, rinse well, and keep the product away from plants and pool water. Pressure washing alone tends to spread the stain. For pools, ask your pool professional, since iron in pool water is handled with pool chemistry.

Cleaning only makes sense once the source is under control. Otherwise, the next irrigation cycle brings the orange back. If your property is on City of Sunrise water for drinking and a well for irrigation, ask Jorge to test both during the same visit so you can see the difference side by side.

Updated 2026-10-17 · Living Waters · Jorge Canela, Water Quality Specialist