Hi
First you need to be thanked for a very fine drill :-)
But consumption is not quite as fine as the machine, I have been using it for two seasons and only filled seeds in it once and many bags of fertilizer.
I measured it for fun with proseed and it turned out that it can run 172 ha with 3100 liters / kg seed. in the real world here in Denmark that we wound 200 kg / hectare, so the answer to 15.5 hectares at a filling.
Can I possibly make it even if it is true?