I bought a used, older 24' doughboy and began liner installation last night. Unfortunately it got dark on us before we finished stretching it and we are all new to pool setup. We thought we had it taunt enough and started adding water. This morning, we found about 4 DEEP creases in the liner in the shallow end and a number of general wrinkles in the shallow end as well. I am trying to decide how to remedy this. Should we empty all the water and stretch it further? should we keep filling and try to work the wrinkles out? (I am fairly confident, the deep creases wont work themselves out)... What are the Best ways to handle this. I have never owned or installed a pool before. Keep in mind, the liner is still stretched over the whole pool wall and not yet tucked under the rails.