The gaz has to be made before the departure by the owner. At the end of the rental, the rentrer has to refuel the campervan.
By this way, it is easier to check if the level of gasoline is the same at the departure and the come back. It is the same for the level of water.
Regarding the gas, the owner has to let the bottle used, and an other wich have to be full.
Other questions ? Contact us.