hopefully it will be ok, did you notice how the tires go down allot, i mean squished down and rounded out a bit when loaded? what pressure do you fill your tires too? the garages say 26
i am fedup with changing barrels so i have bought a flat 250 ltr tank and metal straps to bolt it down, it just fits in the back, but i take the back seats out anyway to save some weight. I dont think il be able to carry 250ltrs but id rather have it all in one tank than fiddling about changing them, i dont take ladders anymore except some steps inside, so that will be better. I have noticed you have to be easier on the clutch and gentle accelerating and braking, but i cant afford a van right now.
Most of my round is 40+ miles away so about 100 miles each day it has been, but now i usually travel there, and stay at a relatives there which is handy as they let me keep a 1000ltr ibc in the garage and ro unit. I just pay them £20 a month for water, and stay down there for a week or less to get it done.