IronIronA naturally occurring mineral found in groundwater. Iron causes orange/rust staining on fixtures and laundry and gives water a metallic taste.EPA Secondary MCL: 0.3 mg/L (ppm)Learn more → (orange staining mineral) and manganeseManganeseA mineral that causes black or brown staining and can affect the taste of water. Often found alongside iron in well water.EPA Secondary MCL: 0.05 mg/L (ppm). EPA Health Advisory: 0.3 mg/LLearn more → (black staining mineral) are cousins. They come from the same geology. They often appear together in well water[5].
The good news: one system can remove both. No need for separate filters.
Quick Comparison: Top 3 Iron + Manganese Filters
| System | Iron | Manganese | Sulfur | Method | Price | |
|---|---|---|---|---|---|---|
| SoftPro Iron Master Our Pick for Manganese | 7 ppm | 2 ppm | 5 ppm | AIO | $1,200–$1,600 | Check Price |
| SpringWell WS Best Overall | 7 ppm | 1 ppm | 8 ppm | AIO | $1,400–$1,800 | Check Price |
| US Water Matrixx Heavy Duty | 10 ppm | 3 ppm | 10 ppm | AIO + media | $2,000–$2,800 | Check Price |
Why Iron and Manganese Appear Together
Both dissolve from the same types of rock and soil. If your water has iron, there is a good chance it also has manganese[5].
The stains are the tell. Orange/rust stains = iron. Black/brown stains = manganese. If you see both colors, you have both minerals.
Why Manganese Is Harder to Remove
Manganese needs more oxidation than iron. It also needs a higher pH (above 7.5 ideally) for effective removal. Most AIO systems handle iron more easily, which is why manganese capacity is always listed lower[4].
If your manganese exceeds 1 ppm, pay close attention to the manganese spec — not just the iron spec.
Have your iron and manganese numbers? Get a personalized treatment plan.
Analyze My Water TestDetailed Reviews
SoftPro Iron Master — Our Pick When Manganese Is High
The SoftPro handles double the manganese of the SpringWell (2 ppm vs 1 ppm). If manganese is your primary concern, this is the system[2].
Who this is for: Wells with manganese above 1 ppm alongside iron.
SpringWell WS — Best Overall (When Manganese Is Under 1 ppm)
Better warranty, higher sulfur capacity, higher flow rate. The better overall system — unless your manganese exceeds 1 ppm[1].
See our full SpringWell vs SoftPro comparison for the detailed breakdown.
US Water Matrixx — For Extreme Iron + Manganese
The highest capacity on this list. For wells where the SpringWell or SoftPro cannot keep up[3].
Who this is for: Wells with iron above 7 ppm or manganese above 2 ppm.
Treatment Order When You Have Both
If you also have hard water, the treatment sequence matters:
- Sediment pre-filter (if needed)
- Acid neutralizer (if pH is below 6.5)
- Iron + manganese filter (AIO system)
- Water softener (if hardness exceeds 7 GPG)
- UV system (if bacteria is a concern)
Iron and manganese must be removed before the softener. They foul softener resin[4].
Frequently Asked Questions
Can one filter remove both iron and manganese?
Yes. AIO systems handle both. SoftPro: 7 ppm iron + 2 ppm manganese. SpringWell: 7 ppm iron + 1 ppm manganese[4].
Which is harder to remove?
Manganese. It needs more oxidation and higher pH[5]. That is why manganese capacity is always lower on spec sheets.
References
- SpringWell Water Systems. "WS Series Specifications: Iron and Manganese." 2025.
- SoftPro Water Systems. "Iron Master AIO Specifications." 2025.
- US Water Systems. "Matrixx Iron and Manganese Filter Specifications." 2025.
- Water Quality Association. "Iron and Manganese Treatment." Technical Resources, 2024. https://wqa.org
- Penn State Extension. "Iron and Manganese in Private Water Systems." 2023.
- U.S. EPA. "Secondary Standards: Iron and Manganese." 2024. https://www.epa.gov/sdwa