The instructions state that rotating the exit port is done by removing the input strainer, then remove 8 "bolts" and turn the port. Ya, no, the 'bolts' are actually screws and have nothing whatsoever to do with turning the port. Remove the strainer as it says, then remove the end cap on the other side. unfasten the 4 bolts there ( do not pull them out ) turn the exit port and re-tighten the 4 bolts, replace the cap and strainer.
Other than spending 30 minutes fussin with the exit port this is a good pump, I bought 2.