I really can't follow your description of the problem. Cut out the extra coments and simply, with punctuation, say what the old pump did when you reinstalled it, and then what the new pump did. Paint a precise commentless verbal picture as if we're blind; make us actually see what is happening.
Also, is there one or two lines from the pump back to and down the well?
If two, did you replace the j-body so as to have the rightr one for the new pump?