Our liner is not quite one yr old and I have been shocking my pool for over a week now with bleach. The deep end is finally clear but now I see on both sides of the deep end big white areas which i thought were algae but look like faded spots in the liner. But only on bottom on both sides not in middle and nowhere else is faded in the pool liner. Could this be due to excessively high shock level? What would cause this to happen. Faulty liner? I think it has a 5 yr warranty.