The raves and bodies were both purchased new from SBT last year. It was not part of a rebuild. I don't think they have a warranty on them... As for the impeller... I guess you're right. I'll pull the pump off and replace the impeller. I will however seal up the seam with RTV between the plate and the hull. I know this is a temporary stop-gap, but it will hint to me as-to whether this truly is the problem if it magically fixes it.