left car in with vauxhall to get coolant leak sorted, they pressure tested it found a rad hose faulty they replaced it ,checked coolant this morning level is down and i see coolant on the ground went to vauxhall this morning they checked the hose it was fine but they could not see the leak just one young lad looking under the bonnet, if they pressure tested it why could they not find another leak ,also would the pressure test show up a faulty water pump