90% of the time i leave the Jag outside and use 50 - 75' of hose (or longer if the machine is left on the van
There are jobs where the machine may need to be brought inside, i cleaned an Indian restaurant the other week and the machine was sat next to the toilet, this suited me because the auto dump hose fed straight into the loo and the fresh water came from the wash hand basin.
Any jobs where your machine is inside always place it on a large absorbent towel !