Buy a full tank of agri diesel now or keep at the 5 Gallon drums

Keep at the drums long enough & you'll be introducing dirt over time into the system which will also cost money. Ya just can't win.

and a Ration book.

I am lucky enough to have a drum pump. I have two 200L drums. I usually buy 500L in May. It keeps me going for the year. Lorry cones in fills the Tractors and then the rest of the 500 goes in the drums. You just pull the tractor near the drum and the pump will fill it in 2-3 minutes

I came across this at work years ago.. they had been bought years previously but they were unsuitable for what they wanted them for. Like in all big organisations when there was a mistake made they were just left there. I was told they were there 10+ years still perfect in a box. Myself and another lad approached a manager to buy them and they were sold to us as if second hand.

These on Amazon would be similar.

https://www.amazon.co.uk/Sealey-TP6818-205ltr-230V-Electric/dp/B071DL22GG/ref=mp_s_a_1_4?keywords=drum+pump+electric&qid=1644656373&sr=8-4

However the one I have is 110 volt. Ya they are designed to transfer oil and diesel. You can get manual ones as well. They are a great job for pumping diesel rather than horsing 5 gallon drums.

https://rotechshop.ie/product/heavy-duty-rotary-pump/?gclid=Cj0KCQiA0p2QBhDvARIsAACSOOP_TNUVkeXuq5uKnZkD1v_svCEyBOW--le1LviYNhhGH1if9oJH8SgaAmu5EALw_wcB

ihave one of these. Its pumped an aweful lot of fuel. And still going strong