I have waited until late October some years, and even used it in October. When does everyone here close up? What procedures do you follow? I just dump what's left of my chlorine in, let it circulate, then drain the pool down to the bottom of the skimmer and return jet, and take all external plumbing in except the filter itself, which I cover. I then put in a tire and a bubble, and tie them in the center, then cover the pool and weigh down the cover. I can't pull it over the edge, because there is an aluminum deck/fence around it, Just looking for pointers on timing and techniques. Thanks.