I was having very little water coming out of the pee hole so I replaced my impeller with a new kit and now no stream. I cleaned out the tube by blowing air back through the inlet, nothing.Dropped the LU again to recheck the installation of the pump but could not find a problem. Is there a tube on top of the impeller housing that inserts into the pick up? On muffs, I have a lot of water coming out of the front of the LU.Any suggestions? No over heating problems.