 My water looks and tastes fine, but I've read about all these things that could be in your water. Several people in my neighborhood have water filters. Should I get one too? There could be various contaminants in water that you can't see, taste or smell. Some water contaminants are not harmful to consume, but they can cause damage to your home, appliances and your fixtures. Water that is municipally supplied may meet all safety guidelines at the plant, but it could pick up contaminants as it travels through the distribution system, the ground, from there to your home.