If you have a pool you will need to back wash the pool filter and here is how to do it. Backwashing is a routine you should be performing weekly and kind of line up keep. Although there are three different kinds of filters sand it the one mostly used. You can from time to time use a filter cleaning product to deep clean the filter and this will also help extend the filter life. The other two
. types of filters beside the Sand are the DE or Diatomaceous Earth, and the Cartridge Filter. For more information on this query you can visit this trusted site http://www.ask.com/bar?q=directions+to+backwash+pool+filters&page=1&qsrc=0&ab=1&title=Backwashing%20Filters%20~%20Expert%20Pool%20&%20Spa,%20Inc.&u=http%3A%2F%2Fwww.expertpool.biz%2Fbackwashing_filters.htm.