I have bought like four Morph pumps. I have had the same problem with two. Never have I been near the shop where I bought it. Talk about planned obselence. It is really lousy of Morph to not arrange o rings on a pump with a warranty. We need, b***h loudly , I guess. Hardware stores never seem to have ideas. It helps to clean the grit out of the interior and lube the o ring. / Still. I bet my two ruined Morph's only got used No more than six times over the likely two years. I don't have that many flats on the road. ( About the same time frame as you.) So what's up. Too bad, I love the Morph. So I continue to buy another after another.