Gunite pool with vinyl liner..15years old.. Loosing 0.5"every day with solar cover closed. The leak detecting company came and added 5 patches and it still leaks. I know the liner is due for replacement. The lead time for liner order and installation is 2+ months. What else can I do in the mean time to save water? The water level is below skimmer now and I have turned off the pump. Just adding chlorine and stirring it manually. Pls advice.