I concur. I always understood that clear water bottles should be stored out of direct sunlight. I have also been informed that plastic bottle made of BPS and BPA plastics leech out xenoestrogens, that can't be good. I understand that increased acidity of our body leads to an increase in the risk of cancers. Cancer thrive in an acidic environment, so I feel the intake of alkali pH water will decrease the risk. Thank you for the comment.