Cloudy Water and Turbidity
Turbidity is simply very fine suspended particles in the water. Most well waters have particles that are fairly large and simple filtration is all that is required to remove it. In other cases the turbidity is so small that more expensive filters with very small pores are required to remove the turbidty. The particle size that any given filter will remove is defined by its micron rating. A typical iron filter may have a micron rating of 40 microns depending on which media it is equipped with. Turbidity filters generally have much smaller micron ratings of 3 to 6 microns or in some cases sub micron rating. The smallest for of filtration generally available for domestic water filtration is ultra-filtration with a micron rating of .02 microns. These are expensive filters and are generally reserved for the most problematic waters.