Last week we finally had our liner change happen and it went great. I had originally scheduled it for late April, but with all of the above normal precipitation we had from April to July, we rescheduled it for the first week of September, and it has been very dry..so it worked out. It took me about a day and a half to empty it out with a decent pump we got at Harbor Freight, my cover pump and fish tank python for the last 1/2 inch. My pool was installed on 2014...the liner being only 3 years old, but it sprung a leak the first day we started filling and the patches looked worse everytime..then someone swam with a bobby pin and it sank to the bottom and left a nice rust stain on it..also the floor had some annoying divots here and there that seemed to get worse. This time it was carefully compacted and we added a happy bottom pad. Some folks here have this liner and I always loved it..but I was always concerned about it being a tad too dark than I like..but it actually shimmers beautifully in the sun.