Bag Filters are designed to remove very small solids and can come in many sizes. Bag filters are the last mechanical filtration before the storm water is treated with enhanced medias. These enhanced media vessels can plug if too high of a level of solids is introduced to them and some contaminants can actually damage enhanced medias so it is very important to remove as much of the solids as possible up stream. Storm Water Systems typically installs both a 25 micron and 10 micron bag filter prior to enhanced media treatment.
(last updated March 13, 2013)