Like in the other thread we had our pool rebuilt. New liner is kind of dark in color and now when the pool is full I don't like it. Before we took the pool down our liner was also dark and one time I think I overdose with shock and it turn kind of white. At that time the water color was more blue / tropical. Really comfortable and inviting. Now it's all darkish a I'm not as excited to take a swim like I was before. Is there a way to bleach the liner without doing any damage to it?