I have a variety of water storage options. Three pepperoncini barrels that were being used to store salt based nutrients. 100 gallon storage tank with cap used to store water, 365 gallon large tank with screw top and recirculating pump inside which is optional. One caged tank holds about 250 gallons. I know all the red ones are food grade and I believe the others are as well but I would need to make sure. The salt on the outside will clean off completely and I’m happy to do it myself for a little bit extra.