I noticed mine started to leak after camping in freezing temps 2 years ago. When I removed it I noticed some corrosion where the parts join which said it had a very small leak over a long period of time. I took it apart and tried to clean it and relighted the bolts but it still leaked and sucked in air. I bought a new one from Amazon and while waiting for the part to come in I took it apart one more time and put some silicone adhesive at the parting plane and that worked. So now I have a backup pump. I would try the adhesive first before buying another.