Hello all! Been a while since the last time I posted! Our liner is 13 years old and has lived out it's life. It has a few holes above the water line, and needless to say the sun has taken it's toll in regards to fading. So now we are thinking replace the liner? Replace the entire pool with another above ground? Or go in ground? Is there any way to determine the status of the wall without removing the liner? The pool is a Sharkline that is partially in ground, so looking at the walls from the outside is really not a viable option. What y'all think?