Orange & Rust Stains From Water in West Palm Beach

Outdoor stains: the sprinkler pattern gives it away

If the orange marks follow the arc of your sprinklers, across the stucco, fence or driveway, the irrigation water is the cause. The University of Florida IFAS notes that iron or manganese can stain at as little as 0.3 parts per million. Every irrigation cycle adds another layer.

West Palm Beach city water comes from Grassy Waters Preserve and Clear Lake and goes through lime softening, filtration, UV and chloramine. Irrigation wells skip all of that and deliver groundwater as it is.

Indoor stains on city water

• One fixture, or after water sits: often a corroding pipe, fitting or valve.
• Hot water only: the water heater tank may be corroding.
• Older galvanized plumbing: can release rust as it ages.

The city's report notes that it cannot control the materials used in home plumbing, and it posts a service line inventory on its Water Service Line page. A plumber is the right call for corroding lines; a filter at the main does not fix pipes downstream of it.

Options for irrigation wells

• Iron filtration sized to the well's flow and iron level, placed before the sprinkler zones.
• Oxidation followed by filtration, which turns dissolved iron into particles that can be caught.
• Re-aiming sprinkler heads away from walls and walks.
• Using a different irrigation source where one is available and allowed.

A filter prevents new stains; existing ones need a rust-stain cleaner.

Pools, pavers and boats

Pool decks, pavers and screen enclosures near sprinkler zones take the worst of it in many yards. If you fill or top off a pool from an irrigation well, iron can also tint the water and stain the finish. Ask whoever services your pool before adding anything, and consider filling from city water where you have it. For boats and docks, rinse with city water rather than well water to avoid the same staining.

Private drinking wells

If the house itself runs on a well and you see orange in toilets, sinks or laundry, the iron is in your household water. Treatment is built from the well's test, usually alongside hardness and any sulfur odor, and the order of equipment matters. See well water in West Palm Beach and well water systems.

What gets tested

• Iron and manganese at the well or irrigation line.
• pH and hardness, which affect iron treatment.
• Pump flow, to size equipment.
• Odor, for hydrogen sulfide.
• On city water: a look at whether the stain is coming from a specific fixture or the heater.

Call, text or WhatsApp Jorge at (305) 793-5974 for the free in-home test.

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