The background: For the most part my knowledge pretty much extends to cleaning and balancing chemical levels. Last year in the beginning of the season my pump sparked, smoked, and died. Thanks to budget strains (due to my pay cut and our first child) we could not make the new pump/motor replacement. By the time we could, it was late summer and necessary to hire someone to drain and clean what had become our swamp, which I would have put off and done myself if not for the city threatening a fine for lack of maintenance. Our preferred people couldn't seem to accommodate our schedule, so I hired someone else (there's a long story here involving misquoted dollar amounts and two months of delays and an attempt to sell us a replacement liner that I'll save you from). In late October I tried to fill an empty pool just to close it, but with the cooler weather the liner shrank enough to bend the wall a bit and tear some of the liner. Not wanting to risk further damage or a collapse, I stopped filling the pool and just put on the winter cover. The winter was more harsh than the previous years and between snow and rain the pool filled enough to reach the torn/dipped part of the liner and a mass evacuation of water occurred.
The situation: We now have a replacement liner, but due to further budget constraints (our second child) we can't afford to immediately hire someone to replace the liner without robbing Peter to pay Paul and are considering doing it ourselves. The weather is between 70-85 and we have available family members to help but they are not pool owners. I've watched a few videos and removed a section of the "rails" and it seems reasonably easy enough, but neither myself nor the helping family members have done this before. I am more concerned about this than I was changing my first alternator as there's a bit more involved here.
The pool: Cornelius 27' which has a deck around a quarter of it.
The questions: The wall had bent inward slightly only in two adjacent sections before the liner ripped, but all supports etc. are fine. Should I still be concerned with the structure? What do I need to be aware of while replacing the liner? How can I avoid wrinkles/loose spots when filling the pool? The deck has corner posts directly behind the outer half of the joints and can't just be slid back, but can be pried up slightly once the screws are out (the pool and deck were here when we bought the house). Any advice on how to manage the removal replacement without damaging the joint piece? What questions am I not thinking of that I should?
Thanks in advance!