Think you're safe by getting rid of your #7 plastic nalgene bottles? Maybe not. #5 plastic has been found to possibly be VERY dangerous itself...and it's everywhere!
With stainless steel and new biodegradable plastics such as PLA available, why would someone choose to use traditional plastics? Check out some of these pro's and con's of new PLA plastic products.
Filtering your water or drinking water straight from the tap only solves half the problem of consuming bottled water. The other half is that we most likely still put it in an unsafe, non-renewable, plastic container. Let's find out what you should use if you must use plastic.