Making the Right Filter Decisions for Landscape …
The micron rating of sand media filters depends on the size of the media used. The smaller the media, the finer the rate of filtration. Figure 6 shows commonly available media sand sizes and their micron equivalents. Sand Size Micron Equivalent #12 150 #16 105 #20 75 Figure 6. Sand media filters are cleaned by a process known as backwashing.
![](/images/whatsapp.png)