I got the dreaded diesel bug in the fuel on my boat so the tank had to be drained. Not a lot involved -= maybe 5 gallons. Anyway I took it up to our local dumpit with the intention of putting it in the tank used for oil disposal. "you cant put that in there" says the oik. " why not?" says I. "because it isnt oil" says he " and its against H$S". " but its fuel oil" says I.
I didnt win.
The same dumpit wont let you put any pots of used compost in the garden waste skip, again for H&S