well been wanting to do one of these for awhile but really haven't found a drum ....well my bro in law was throwing away a 55 gall drum that all he kept in it was wood chips for his garden..don't know what was in it before he had it...but i know he has had this for at least 2-3 years with nothing but wood chips.....he said he doesn't need anymore gettin in the way...so i ask him can i have it and he said sure...well when i went to pu it up it had probably 20 gal of water in it and half full of wood chips ..now we really haven't had much rain here since june so you can imagine how rusted the inside of this drum is....plus he has alot of metal scraps even found a exhaust pipe i can use .....well anyway hopefully i can still use the drum...but its going to take alot of elbow grease to get rid of all the rust..funny thing it still seems pretty solid....take a look and let me know if you think it still worth it...thanks