InstantForum.NET v4.1.4Perfect Pool and Spa Question and Answer Forumhttp://www.perfectpoolandspa.com/forum/forums@perfectpoolandspa.comThu, 20 Nov 2008 05:27:25 GMT20http://www.perfectpoolandspa.com/forum/Topic22-4-1.aspxYou should change the sand every 3-5 years. Thu, 06 Nov 2008 04:36:31 GMTHedgehoghttp://www.perfectpoolandspa.com/forum/Topic22-4-1.aspxWe have a sand filter. People have told us we need to either change the sand or the filter should be cleaned. Is there a product that you add to do this. How often should you clean a sand filter. We have an inground pool and this is the 3rd year in use. Any advice? Thank you:)Fri, 27 Jul 2007 08:16:51 GMTmamakin