The vacuum bags that my deer sausage came in worked fine as water containers and form a nice stable cylinder about 3" by 10." They are food grade also. If you want a larger capacity, try the clear oven, baking bags. They are very strong and also food grade. If you can put a turkey in one and bake him at 350 degrees, it must be tough. Put a quart of water in one and made several walk and drop tests. They are very durable. Never had it burst or leak after several drops. Put 2 quarts in and threw it about 15 ft. upwards. If I had not tied it so tight I think it would have survived. If you don't unfold them out of the box, they are very compact. Not to mention very low cost.<br><br>Regards<br>Bruce G.<br><br>