Peggie, Awhile back I asked a question about my pressure water system lossing prime on our 84 H31 with a Shur-Flo pump. Your advise was to replace the diaphragm. When I went to remove the pump, I realized I had misinformed you. The pump is a Jabsco Par-Mat #44020-0000. Is replacing the diaphragm still the best fix? Thanks, Bob