I think we're going to bite the bullet this year and renovate the pool. A bonus is a tax credit from the Canadian Government this year on home renovations (up to $1350.00), and it applies to pools as well. We've lived in this house for 3 years, the pool was built in the early 80's, and the liner was likely replaced along with some other work such as the shallow end stairs around 15 years ago.
The pool has had a shallow end return line leak since we've owned it, and last year I capped that line off and used the pool sweep line as a second return (it was previously unused). Unfortunately, the leaking water from that line had created a somewhat floating liner, and with it's age it lost is sketchiness. All four corners of the liner are out of the track with space behind. One corner or the liner tore near the top last year which I patched, but the winter ice rose in the corner a couple of days ago and has partially removed that patch.
It's not going to be a simple job that I can try to tackle myself so I'll be phoning around this week for estimates on doing the job right so I don't have to worry about it again. It may mean completely redoing the pool deck. It will mean replacing all of the coping (it's all PVC - replace with aluminum). The cement deck on one side has shifted over time inwards. The Shallow end return is under cement and the stairs have settled so they will need to be re-levelled. Might see about adding a SWCG at the same time. Maybe a winter safety cover. Pictures to follow.