Thanks for the reply. OK, I'll drain the pool.

The liner is only three years old. To reset the liner, do I disconnect it from the top edge or leave it attached and try to move the liner toward the bottom of the walls in the shallow end first?

If I detach it from the top lip, how hard is it to re attach it?

Where do I stick the vacuum hose? Must be a thread on this procedure..., but haven't seen anything definitive.

Too bad in NE Tennessee for this May, we are experiencing global cooling. Temps for the next week aren't expected above 75.