Just for record since there is a lot of tank talk. I am still using the original poly tank that came with my Erlkoenigin in August., and I use it daily. I have run all sorts of different juices through it and it is still perfect. I know when I was originally thinking of getting the Erl I was worried about the tank, but for me the worries were unfounded. I have the stainless tank if I need it, but don't use it often as I prefer to visually see my juice level.