Interesting question! I'm not sure I know the answer to it, as I'm replacing my liner in the spring (I see no point in doing it now, and I suspect you should wait as well). I've got my new liner boxed and dry, and ready.
But I'm not the liner install expert. Here's what I'm thinking: Which way is it too long? If it's an inch too long on the sides--goes down too deep--you could remove an inch of the sand base and it may be fine. If it's an inch too long or too wide, you may be able to distribute the extra length/width around the pool, and get any extra on the bottom moved to a more innocuous area. The wrinkles WILL be a persistent pain in the neck for vacuuming as detritus WILL get caught in them. My old liner was installed with lots of wrinkles and I may put up some pics of it later, along with its fading over 12 summers' of swimming. The original liner failed after 10 days and the replacement team who did the warranty re-install did a dreadful job. I WILL fix that in the spring when I do it. But the liner STILL held up for 12 seasons.
IF you can make it work, you'll save yourself the cost of a new liner (and they can be expensive when custom-made, as mine is), but you'll see the wrinkles for years to come--think of how many thousands of $$$ each wrinkle saved you!
Bookmarks