I took a water test that has the following results: (acceptable standard in parenthesis).
Total hardness: 100ppm (<50ppm) Alkalinity: 120ppm (<180ppm) pH: 7 (6.5-8.5) iron: 5+ ppm (<.3ppm)
I'm trying to figure out which filter system would be best to get between Catalytic Carbon or Birm. I can't really find reviews on either, but they both look like they would get the job done.
Centaur catalytic carbon is a specially prepared carbon made by the Calgon corporation, for the removal of hydrogen sulfide and iron from well water, or chloramines from municipal tap water. Makes a great “whole house” filter for general city water use, especially where chloramines are used, and works well with oxidizers like air and chlorine for sulfide or iron removal. This filter costs more than the standard GAC filter above because catalytic carbon is quite expensive.
```Birm Birm is a medium specially prepared for iron removal. It has the ability to oxidize iron, and can remove small amounts of iron without pre-treatment, but it works best following aeration. It is also effective at manganese removal. The pH must be 6.8 or above for birm to work properly.
Note: Birm should not be used on chlorinated systems.```
From the write-ups, it sounds to me like Birm is a better iron remover, but I don't want to just guess at it. The water is coming from a well and tastes like a jar of liquid pennies. We had a previous iron filter that wasn't designed to take out this much iron, but after adding an additional filter after it, it did take out the iron to the point where it wasn't detectable, so I know it can be filtered. That iron filter died... probably because it wasn't designed for this much iron.
Either filter system I get will have an aerator before it to oxidize the iron.