I have a leak in a hose that goes to the radiator?

ok i have a 98 saturn SL standard, when i bought it i had a crack in the radiator and i got a bran new radiator and put it in but now i found out i have a leak in one of the hoses that leads to it, i have eliminated the top hose to the radiator and am down to the bottom hose or the hose that leads from the reservoir ( where you put ur antifreeze in) to the engine that connects to the bottom hose of the radiator how can i figure out which hose it is?