Leaking pool in Georgia - Let it leak through the winter and fix in spring?
You should confirm the leak is in the plumbing. The pool company can do a pressure test (it's easy to do diy too, just need some fittings. Just be careful not to put too much pressure in the system.) Anyway, another way to confirm where the leak is to plug the return and skimmer lines. If the water stops falling, then you have your answer.

If the leak is indeed in the plumbing, capping the lines, winterizing and waiting till the spring is fine.