Thanks Tony & Zig
I have both the cartridge filter and sock filter and intend to just mount the pod high and gravity feed the biodiesel through the filter (??) into my vehicles.
To pump it into the pod I have a 30 litre per minute pump (also filtered with a cartridge filter) which will transfer fuel from the settling tank up into the pod. The final filter is just extra.

I will look for a UV resistant pod or two - any more info I need please.