15 year old liner is failing

[psmith]

I need help! My liner is 15+ years old. It started falling away from the walls. I tried to do a temporary fix to survive this year and save money for a new liner but its not working. :-( My pool is a 21x36 in ground . My question is what do I need to do to preserve my pool so it isn't completely ruined? I know I am going to have to put the cover back on and start over next spring. So do I need to drain? Cover exposed wall with tarp? Any help would be greatly appreciated.
Thankd

[PoolDoc]

Fix it ASAP. Liner pools do not do well without liners or water. If you can borrow money and fix it this fall (a little cheaper than mid-summer), do so. The cost is likely to go up as the pool sits and deteriorates.

I'll see if Ted (Waste) has further thoughts to add.