The technology of many of the Everpure filters includes a fine mesh, which will, in some instances, cause an aeration of the water, wherein tiny air bubbles will appear in the water for some time after initial installation. This will make the water appear cloudy. What has happened is the trapped air inside the new dry cartridge has been filtered to a very fine degree and what you are seeing are those newly filtered air bubbles. Take a glass of water from the filter system and then set it down. If it clears from the bottom up then the bubbles are dissipating as they should. This is normal and the appearance of these bubbles will slowly disappear over time, which can vary from filter to filter.