Orange Rust Stains in Sink, Toilet and Tub — Columbus Guide
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Orange Stains in Your Sink, Toilet, or Tub?
Those orange or rust-colored stains are iron deposits — and they'll keep coming back until you treat the source. Here's what's causing them and how to eliminate them for good.
Do this right now
5 immediate steps while you wait for help
- 1
Test your iron level
The only way to know how much iron you have — and what type — is a water test. We test for ferrous iron, ferric iron, iron bacteria, and manganese on-site. Call (614) 476-8711 for a free test.
- 2
Stop using iron-stained water on laundry
Iron stains on fabrics can be permanent if set with heat. Until your iron is treated, wash laundry in cold water only and avoid the dryer for stained items.
- 3
Clean existing stains with iron-specific cleaner
Standard bathroom cleaners don't remove iron stains. Use a product with oxalic acid (like Bar Keepers Friend) or a dedicated iron stain remover. This removes existing stains but won't prevent new ones.
- 4
Check your toilet tank
Open the toilet tank lid. Orange slime or residue inside the tank is a sign of iron bacteria — which requires more aggressive treatment than dissolved iron alone.
- 5
Get a free water test
Iron staining severity correlates with iron level. We'll measure your exact iron concentration and recommend the right filter — from a simple iron cartridge to a whole-house air injection system. Call (614) 476-8711.
What's causing it
These are the most common causes in Columbus-area homes. Identifying the right one determines the right fix.
Dissolved iron in your water supply
Columbus-area water contains 0.1–0.3 mg/L iron on average, but some neighborhoods and well-water homes see 1–5 mg/L or higher. Dissolved iron is invisible in the tap but oxidizes when exposed to air, leaving orange deposits on any surface it touches.
Iron bacteria in your well or pipes
Iron bacteria are microorganisms that feed on iron in water. They leave a slimy orange-brown residue in toilet tanks, on fixtures, and in pipes. Iron bacteria require shock chlorination and often a whole-house treatment system to eliminate.
Corroding galvanized or cast iron pipes
Older Columbus homes with galvanized steel or cast iron pipes experience internal corrosion that releases iron particles into the water. This is a progressive problem — the staining gets worse over time as pipes deteriorate.
High manganese alongside iron
Manganese often accompanies iron in Central Ohio water. It leaves black or dark brown stains rather than orange. If you see both orange and dark stains, your water likely has both iron and manganese — requiring a filter that addresses both.
Tannins from organic matter
Well water in wooded areas of Central Ohio can contain tannins — organic compounds from decaying vegetation. Tannins cause yellow-brown staining similar to iron. A tannin filter or whole-house carbon system addresses this.
The permanent fix
An iron filter — like our Iron Boss or QualitAir air injection system — removes iron at the point of entry, eliminating staining from every fixture, appliance, and load of laundry in your home.
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Frequently asked questions
Don't wait — call us now
Same-day emergency water testing available for Columbus-area homeowners. We'll identify the cause and give you a clear path to fixing it.