@Smart_trade . whoever is that chemical engineer convey my salute to him. By saying purified, RO water etc, we lose lot of chemicals from water that we supposed to take. RO water might taste good but we certainly miss ore.
@against_tides . Not all bottle water are dangerous. Plastics have many varieties. Grade of plastics are usually embossed at the bottom of the bottle. Low grade plastic bottle should not be used. and high grades we can use till its quality period and certainly wont impact anything for 1 or 2 days travel