Hi Guy's, set up camp driveway today, missed the great Spring weather here in Texas last month. Anyway, I have two problems. Thetford potty not flushing, replaced the fuse, still not working. Pulled the pump, tried the impeller move and it is locked up. Hopefully I will get a new pump this week. Other big problem, the cold water valve leaks on the shower/potty area. Pulled the knobs and valves out. One is missing an O ring. You guys think that is the problem?