Simple pipe layout - 2 pipe joined by a 90 degree elbow
 

Hi I am new user and needs help from cfd experts, trying to make simple pipe layout i.e. 2 pipes; 1 horizontal and 1 vertical joined by 90 degree elbow at the base of vertical, here is what i have done, define vertices and manage to make horizontal and vertcial by sweep face commands, however the sweeping fails for elbow. any suggestions will be appreciated.

flow in pipe
 

manage to solve the above problem .......... however i am stuck in FLUENT, I AM TRYING TO SIMULATE A SINGLE PHASE WATER FLOW IN VERTCIAL PIPE HAVE EXPERIMENTAL VALUES OF GAUGE PRESSURE ... NEED TO COMPARE WITH FLUENT VALUES .. WHAT SHOULD BE THE OPERATING PRESSURE 101325Pa or 0 value.