Where can I get Iron Removal Filter Bags?

If you want to remove or collect the iron from your water source then you need to do a few things before you would be able to do that. The first is to address the ph. that is most of the time too low. The next step is to treat the water to oxidize the iron. The iron must be oxidized before you would be able to collect it. The oxidizing change the dissolved iron in a solid state. When the iron is in a solid state you would be able to remove or collect the iron.

Is the iron removal filter bag effective?

No the iron removal filter bag is not effective. It would remove a portion of the iron but not completely. You need to use some other filter media to solve the iron content in the water to a standard that the iron would not stain the white stuff and the walls.