This is of general health interest; from Dr. Mercola’s newsletter
Plastics that are safer to use for storing food and beverages, none of which are known to leach harmful substances include:
a.. Polypropylene, designated “#5 PP”
b.. High-density polyethylene, designated “#2HDPE”
c.. Low-density polyethylene, designated “#4 LDPE”
So pay attention to the container you store your water in. If you can’t use glass, only use one of the above “safe” plastic jars. Also, don’t forget to apply this information when using baby bottles and other food containers.