If your reverse osmosis water tastes strange, it could be due to a few reasons. Firstly, check the age of your filters. Over time, the carbon filters in the system can become saturated, leading to an unpleasant taste or odor in the water. Replacing the filters at the recommended intervals can help alleviate this issue. Another possibility is the presence of dissolved minerals in the water. While reverse osmosis systems are designed to remove most minerals, some may still pass through or accumulate on the membrane. In such cases, using a post-filter or a remineralization cartridge can enhance the taste of the water. If the problem persists or worsens, it is advisable to consult a professional or consider getting your water tested for potential contaminants.