Iron and manganese staining
How do I remove iron from well water?
Dissolved iron oxidizes when it meets air, leaving orange staining; manganese leaves black specks and grey laundry.
How you notice it
- Orange or brown staining in sinks, tubs and toilets
- Black flecks in filters or on laundry
- Metallic taste
- Rust-coloured slime in toilet tanks
Why it happens
Carbonate and sandstone aquifers hold iron and manganese in solution under low-oxygen conditions. It only becomes visible after your tap.
The fix
- Air-injection oxidizing filter ahead of the softener — no chemical feed
- Sediment prefilter if the water also carries grit
- Fine-mesh softener resin tolerates the residual iron a filter leaves
- Shock-chlorinate the well if iron bacteria slime is present
Equipment that solves it
Recommendations are generated from Canadian regional well records. Links are affiliate links — we may earn a commission at no extra cost to you.

SpringWell WS1 Air-Injection Iron & Manganese Filter
Oxidizes dissolved iron and manganese, then filters it out — no chemical feed, no staining.
$60/yr consumables · standard
Shop this stage
US Water Systems Matrixx Infusion Iron & Sulfur System
For carbonate and sandstone wells with heavy iron plus rotten-egg sulfur odour on the hot side.
$90/yr consumables · premium
Shop this stage
iSpring WGB22BM 2-Stage Iron & Manganese Whole-House Filter
Entry option for light staining. Expect cartridge changes every 2–3 months.
$140/yr consumables · budget
Shop this stageWhere this is common in Canada
Regions whose modelled groundwater matches this problem.
Get a sized plan, not a guess
The builder combines your region's hardness, aquifer and depth data with your household size to size every stage and total the cost.
Build my system