Been using Di tanks for the last 8 months, just moved house and the tdi is 350 so on to the IBC tanks. They're going to be outside for the time being, and will go in a shed fairly soon. I've got a bog standard hose pipe end on the IBC tank, will the pressure alone be enough to fill my tank in the van up fairly quick ( van will be about a metre from IBC) or will I need a pump? And is it ok just to fill the IBC tanks on the drive way? (It's in the metal frame/legs) or will I need to secure the floor better, don't want to damage the drive. Cheers.