Well in last car i had, i had a few leaks here and there that i left, thought it wont be that bad (lazyness), i had the hose reels dripping and the return to tank hole leaking. So because im in new van i thought im not having that any more, well i cant believe how much water i must of been wasting before just through a little few leaks.
In my opinion now it really is worth spending a little bit of time tightning, fixing etc etc here and there. 2 of us go out and are using 300 - 350 a day and water flys out of poles. Did a really good day yesterday 9 - 5 and still had 100 litres left! (400l tank)