Water is essential for good health. Everyone agrees that you should drink more water but many people do not want to drink water straight from the tap. There are a variety of water filters but which one is right for you? Most are easy to install and maintain but which one should you choose? 1. First, test your water. The filtration system you need for your home depends upon the quality of your water supply. You can buy a test kit at your local hardware store. 2. Choose a water filtration system. There are several types available. Choose the system based upon the contaminants you're trying to remove. Here are several types of filters you can choose from. Whole-House Filters: Whole-house filters are placed in the main water line entering your home. They are designed to remove sediment and rust particles from all of the water entering your home. Undersink Filters: Undersink filters remove bad tastes and odors from the water. Some may also remove lead, bacteria and sediment. Faucet-Mounted Filters: These filters connect directly to the faucet and require no plumbing connections. Some models are designed simply to remove bad tastes and odors, while more sophisticated units now have lead- and cyst-filtering capabilities. Countertop or Canisters Filters: These are the simplest of water filters available. There are different varieties but some of these filters remain on your counter, others connect to your spigot and the simplest of all require that water be poured through them to filter.