First off I rent. Second my duplex is fed with well water. Third I the well has a high solid/calcium content (lots of film on dishes, white crust on faucets etc). I want to be able to wash and detail my car, but really don't have the money to pay for any expensive water treatments. Also being a rental, I really don't feel like doing the landlords any favors. What options do I have? My feeling is I don't have many. Thanks.