Most garbage bags say "Not recommended for food storage". (Esp the ones with insecticide embedded in the plastic.) I am assuming that this would mean for water, too.
Other than large oven-cooking bags and food storage bags, what could you use?
WARNING & DISCLAIMER:
SELECT AND USE OUTDOORS AND SURVIVAL EQUIPMENT, SUPPLIES AND TECHNIQUES AT YOUR OWN RISK. Information posted
on this forum is not reviewed for accuracy and may not be reliable, use at your own risk. Please
review the full WARNING & DISCLAIMER about information on this
site.