There are lots of affordable water filtration options on the market nowadays. They provide easy solutions for homeowners with a modicum of plumbing skills. I've installed two, a simple in-line canister type ($40) and an electrically powered whole-house model ($300), both in the last month. It's easy to filter your water if you own your own house and are able to do a bit of simple plumbing work. Probably not so easy if you rent. Landlords tend to take a dim view of tenants cutting into piping systems or installing equipment whose maintenance becomes their problem after the tenant moves out.