Ever since I bought my house about 3 years ago I've had issues with hard water, etc. Originally the house had a Kenmore water softener which from what I've read aren't that great. So I replaced it with a brand new Fleck Ecominder 5600. Well the new model seems to be doing better with the water hardness, however I've noticed that we get a lot of red residue in the shower grout, on the facet aerators. Does this mean we have a lot of iron? If that's the caxe I would have thought we would have issues with rust which we don't have at all. Also our white clothes really loose their white color, almost makes them brown/gray after multiple washes. Any advice would be great! Would some softener salt with Rust Remover be beneficial at all?