Hi Janet. Thanks for the warm welcome and responding to my concern. I have a couple of questions. One is there a certain metal sequestrant you'd recommend or do I need to see what is available in my area? Two, I've since learned that there is a prefilter I can use. Would I be better to drain and refill using a prefilter to help eliminate iron? Three, do I need to have a test kit for metals so I know when they have been removed or will that be obivious via the water quality? If a test kit any reccomendations? Thanks again.

Kris