Not sure what you mean. Sand lasts millions of years! Ok, ok. In your sand filter sand lasts indefinitely unless you do something bad to goop it up. Poconos is going 14? years, I think, Watermom's on 11 or 12, and me, the noobie is still wet behind the ears at 9 years. aylad's been running her sand filter for years, too.
Carl
Bookmarks