Which hose goes on which barb on the circulation pump

I have replaced the "circulation pump" on my LG WM3997HWA 01 and am now reconnecting the hoses. there are two hoses to the top of the circulation pump. They are both the same size and the two barbs that match them are both side by side. I dont know which hose goes on which barb. One hose goes up to the top of the tub and one goes to the bottom of the tub. One is marked with red marker the other is with blue marker. Both hoses are the same size and either could go on either barb. Which is Which????? LG refuses to talk to me! They say that is technical advice that they dont provide. But they sold me the technicians service manual for $29 and that information is not in the service manual! If I just had a picture of the pump in situ I could figure it out! The barbs are aligned back to front so are identifiable. The hoses go left or right so are identifiable. Its easy, but LG wont help me. They dont want me to buy another LG product like my LG TV and LG Refrigerator which will be replaced by something else when they fail. I wont go thru this again, its not worth it.