I used to put mine in the jacuzzi when we had it and then layed it flat on a towel and dryed it. the jacuzzi had a bed in it so i layed it on that.also when it warpped put it out in the sun on a towel in the driveway and let the sun do the work.For the bigger one to clean it just lay on towels in the driveway and hose it and i took a broom to scrub it with. of course this method is when it is warm out.