scottydtrmito

hi iv got a few questions about my dt here iv bought the bike to do up and it had no water bottle so iv got the bottle and theres 2 pipes from the bottle n i cant find ware they go lol the short pipe seems to go to the radiator but as for the longer pipe (about 5ft) i cant find anyware for it .....i was thinkin it was an overflow but y would it be so long plz help me lol also how do i know the oil pump and water pump is working