Metallic-tasting water is usually associated with either yellow water or air bubbles in the water.
Chlorine taste and odor
We add 0.6 ppm chlorine to our water supply to kill bacteria and other microbes. Flushing your house plumbing, especially during long periods of inactivity, may be helpful in controlling chlorine taste and odor.
You may find drinking water more appealing if you fill a pitcher of water and let it stand in the refrigerator overnight. That should minimize chlorine taste and odor problems.