I have an Ironsoft water softner that takes out the ferrous iron from my water. After about 6 months, I noticed our white clothes turning brown. I had tje water tested and was told that I have ferric iron in my water. I was sold another softner that had a KX MATRIKX + CTO/2 Carbon Block filter on it. (The Workhorse 10" Big Blue filter) The material from the manufacture say this filter should be changed every 6 months to a year depending on water quality. After about 4 weeks of use with a new filter, my water pressure drops to zero, and I have very little water coming through the system. I have been changing this filter every month. My well is 600' ft deep and gives me 3 GPM. I put in a new 86 gal pressure tank to ease the burden on my well pump. I am still having problems with the system and last night the water stopped running. I had to remove the filter so I would have water. ANy suggestions on how to solve my problem?