ive always wondered that.is it because of the aluminum or whatever?
i think you thinking that alluminum is bad with waterActually most packaging that has alluminum like juice boxes has an inner coating to prevent mixing of the container with the actual drinkThe main reason i think companies don't produce canned water is because its more expensive in comparison to plastics.
It depends on the wool and the tension of your knittingCast on a square of 30 stitches and knit a square and count the number of stitches per inch/centimetre and how many rows for the length.