If the pump doesn't work you can rent a gas powered pump. I rented locally near the pool and only needed it for about 4 hours, cost $46 with tax. I'd thought about a trash pump but the rental company didn't think I'd need it and was willing to swap it out if needed, would have cost an extra $5. If you have the time using garden hoses to siphon the last bit of water out of the pool makes for a more comfortable working environment. I didn't have the time so ended up slogging around in 3" of mucky water most of the day. I took everything the previous owner was willing to give me, including stuff he had in the garage. Some of it I won't ever use. Some of it looked like trash but we took it anyway. One of those items was the skimmer weir. Even took the ripped up pool cover, it went in the trash the next day. Take it all and inspect it later for keeping or throwing away. By the end of the day of disassembling we were so wore out we couldn't load the liner in one piece so ended up cutting it. We used a shop vac to remove sand from the filter down to the laterals. We used old dog food sacks to hold about 50# of sand. We used the sand bags to brace the filter in the corner of the trailer to prevent it from moving. I only had my wife and two preschool girls to help, another adult male would have made things a
lot easier. I had to do all the heavy lifting. Once you get the wall rolled up if you have the space and energy, laying it down and unrolling and re-rolling makes for a tighter and easier to handle bundle. I brought a piece of plywood to have a stable platform to roll the wall on but didn't use it. The vinyl floor on compacted sand worked fine. A tip I got from shadebuilder.com is to roll the wall so the skimmer section is the last part rolled up. This lets you start your build exactly where you want the skimmer to be. That site also has info about repairing damaged walls. I didn't get to preview the pool before I showed up, no pics on CL (pic via google satellite and streetview) and a 3 hour drive to get there, so I loaded everything I could think of into a 3 horse trailer and took it with me. I took a sawzall in case there was hard plumbing or deck that had to be removed but didn't have to use. Extension cords, garden hoses, shovels, pickaxe, wheelbarrow, dolly, ramp, drills, drivers, camera, ziplock bags, sharpie, handtools, watershoes, gatoraide, but forgot sunscreen. I have a farmer's tan but still got a little burned high on the arms and low on the neck. Gloves would have helped as the liner got covered in sand and made it hard on the hands to handle. We left at 6:30 am and got home at 10:30 pm, a lot of that time was travel and taking care of preschoolers. We picked up the pump at 10:45 am, got to the pool at 11:00 and was leaving at about 6:30. Had to break for gas & food and to return the pump. I worked while the wife & kids went for pump gas and food, I had a gas can but forgot to fill it before we arrived. The 2" pump ran out of gas about 2/3 of the way to emptying the pool. While the pump was running we were loading the accessories and pulling non critical pieces off the pool.
While it was a lot of work and I was wore out by the end of the I'd do it again if I had a little more help. From the looks of it I've gotten a very nice pool for a very good price
. I may not have paid the owner any money for it, but it was by no means free.
Good luck and I hope it works out well for you :-D