In my opinion water filtration systems are a must for any home. After what is costlier, a water filtration systems or the health risks of not having one? There are a lot of good cost effective water filtration systems available on the market. If you live in a rented home or apartment you can get a system that is easy to install right under your kitchen sink and easy to remove and take with you when you move if you choose to. If you own your home I suggest you get a whole house water filtration systems as well as the under the kitchen sink for double protection.