Think of it like this. This liner is 15 years old. How much is going to cost me to keep on fixing this one? How much is it going to cost me to put in a new one? More than likely, it will be cheaper to replace it. Good luck:)
Is the skimmer plastic? Does it have a black bottom? If so, there is a kit for this. Check out black bottom skimmer repair - search.
Replace the tiles. Makes it easier to clean the water line. Stains and oils will be permanent if you don't. k
The plaster would not adhere to the liner. k
No, because gunite will not dry if it is constantly being mixed with water. Drain your pool first.
Insalall thick carpet.
If you are talkin about a vinyl lined pool the answer is yes you can.
Replaster!
Gunite
No, Gunite is a type of concrete.
you can't its permanent
Gunite is a trowled-on cement coating similar to stucco.
"Gunite" is a special concrete mix that is sprayed, with a specialized spray gun. Using Gunite requires, by definition, the use of the spray gun.