If the container is used to store food for human consumtion it is safe to store Ro water and saltwater. Not sure what's your concern. I don't think FBOD have anything to do with the contents..
I had some Fellow LIRA members ask for his contact. When I talked to him he told me he only wanted to do sales through eBay. His eBay user is "Ben-andi" I think his name was Nick. Very nice older gentleman.
I met him yesterday very nice guy but he does not want to deal direct only via ebay and only accept paypal. I was paying him 15 cash for one extra barrel and he said only via paypal. Its weird but I don't mind what ever he feels comfortable with. I picked up one and picking up one more today.