I have had this carpet four summers now and it still looks terrific. At the end of summer, I lay it out on the driveway where it will get the most sun and give it a bath, using a bucket of water and a small amount of eco friendly laundry soap. I mop it down with a soft boat brush, then give it a good rinse with the hose. Once the sun has baked it bone dry, I roll it up and store it until the next summer.