The idiot who was here before me must have used vice grips!!! The fill hose from my Theoben pump will not fit the threaded fill port on the end plug. Even if it did fit, the lip on the end plug does not allow enough room to screw in. Solutions? Also there are traces of glue/cement inside the end plug. I would think that the dummy piston with oring is a straight press fit. Correct? All feed back is greatly appreciated!

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