twood19
Manganese greensand is regenerated by potassium permanganate. Make sure that your system is regenerating properly with the potassium permanganate and not just backwashing. Also remember that the first half of your system (the in flow side) is having to deal with the iron problem. It only treats the water that has gone through the greensand. The green sand is replaceable.
Have a pro come out and give it a check up. The money you save in otherwise stained clothes and other laundry will make it worth it.
That type of filter is good for iron removal. A good softener used with a product called iron-out would be a nice addition to your system.
good luck.
ted
