My husband and I are renting a house from some friends while we are building a new house. It has a 26' round above ground pool with a deck built around it. The homeowners said they always drain the pool with a sump pump overnight, scrub it clean the next day and refill. I'm a little nerdy, so after a lot of research I'm nervous about draining the pool to empty. It's supposed to be partly cloudy and 68 degrees this Saturday. (Unseasonably cool!) If we drain down and clean and refill all on Saturday, do you think the liner might be okay? They said they replaced the liner about two years ago, which leads me to believe it is vinyl. I'm worried about following their "advice" and then them getting upset if something happens with the liner. Thanks in advance for all your help!!!