Is that what it is? I've got one the same but not as big. Absolutely cracking bit of kit. Be careful tightening the tap nut as it's quite easy to squeeze the inner and outer skins together and distort thing.
I’m waiting on a bottom drain bits & pieces to arrive then I’ll look at a suitable element for it had a row off SWMBO as she found the big parcel in my shed Been thinking of a grain basket to fit inside but there bleeding expensive