Hi Everyone! New here. I live in Midde TN and currently have an in ground pool with a Hayward DE filter. The filter system is probably 12-15 years old. The pool company I use keeps trying to get me to switch to a Sand filter. They say that because I live with so many trees around etc that sand will keep pool more clear. I feel like this is counter intuitive since DE filters filter to 3 or so microns which is better than sand. Any thoughts?