I purchased an Intex above ground pool on 5/17/11 at Wal-mart along with the 2 year warranty. I now have grass growing in my pool although I followed Intex's owner's manual and cleared the ground of all grass. Intex's customer service said "grass growing into your pool is a natural thing". Ha! They would do nothing with their 90 day warranty and we have had the pool a few days shy over a month and swam in it for a week. I called the Wal-mart warranty we purchased which will not kick in until the 90 day INTEX warranty expires...which would be August 17, 2011..swimming season is just about over. Ha, more! The Wal-mart warranty would not cover this at all. So basically we had to drain the 3000+ gal. pool today and go buy "blast-it" from a recommended pool dealer to kill the grass and long strips of patch kit to patch well over 40 holes where the grass has gone through. Will never buy, nor recommend an INTEX pool for the rest of my life.