/sci/ - Science & Math

Is drinking water out of plastic bottles a bad idea? I've recently taken the conscious effort to not drink much tap water cause supposedly it's absolute dog shit in America. Many people have also admitted to flushing pills down toliet's to me. So at this point I'm wondering since like 90% of us piss out plastics anyway should I make an effort to buy and set up an reverse osmosis filter with a glass tank for water or is it a waste of time and money ? For every one gallon of water you waste 4 gallons of tap water I hear. Is our plastic exposure concerning at all?