Yes mate.
Instead of putting the pipe in the water container it's connected to a 400l tank in the van.
This was one of the reasons i got the trolley.
I have a 100m of microbore (6mm) hose which is connected to the trolley with a hoselock connector. If i need to take the trolley out it only take about 2 minutes to do.
But like i said i haven't taken it out for ages.
Craig
i have exaclty the same setup except that i use the trolley 99% of the time and pull the hose out rarely.
I do this 'cos i'm a bit homeless atm and i'm having to produce water elsewhere.
I use about a 1/3 less water now by filling 25 litre barrels (with submersible pump) than i did when i used the trolley as a van mount.
I also break no ornaments or plant pots wheeling a trolley around whereas i broke a several plant pots and a couple of statue/garden ornaments by dragging a hose.
A van mount is much quicker but i spend more on petrol by having to refill some days at lunch time.
The trolley is very water efficient but is a pain to refill on jobs that use more than 25 litres.