I have a Ford Transit t300, SWB, low top, with a 1000 liter Pure Freedom set up, along with two reels, three pumps, one RO booster pump, four poles in their own pipe holders, two trays of tools, the usual selection of spares and window cleaning accoutrements, oh yeah, and a portable toilet seat.
So, with two of us in the cab, how many liters of water do you think I can put into that tank, legally?