I wennt to lowes today annd looked at some stuff but couldnnt finnd if they were food grade or not, didn't see anything on the bottom of them or on the tags. Need something atlease 25g.
I use 22g rubbermaid brutes (i recently put a thread in the diy). The brutes are $20 at home depot in port huron, i think they are $35 at home depot here. The Brute cans in gray are certified to NSF standard 2 which i believe means they are food grade. I have tested my water after a week in the can and TDS is still zero.