Full Description

The City of Salem, Oregon has found many advantages to using slow sand filters. Among the benefits are: minimal operation time; 8-10 weeks between cleaning times; very effective in the removal of giardia cysts; media replacement occurs about every 12 years; produces high quality water at a relatively low cost.

Product Details

Published: 01/01/1992 ISBN(s): 0898676029 Number of Pages: 3File Size: 1 file , 110 KB