I finally decided to rebed my 14 year old Aqua-Pure NFS-100 iron removing softener and everything seemed to go fine but now filling a tub is yellowish, the same color as the new media. Also the water feels so soft it is slimy. Is it possible the media is being forced out with the water? I've backwashed it twice with the salt setting at the lowest consumption. So much is coming out that it is clogging my 20" 5 micron cartridge which is after it. Could it be valve troubles or will it settle?