My last kitchen sink faucet was installed 4 years ago, and out of the blue it became unfastened to the sink and slid around. Looked underneath and saw the fasteners had gotten wet and rusted all to hell and crumbled between the fingers. The faucet was not well sealed with the gasket and allowed water to enter. The plumber had a hell of a time trying to undo what was corroded to reinstall the faucet, so instead of paying for man-hours, I told him to just install a new one. Overall it wasn't cheap. Oh the joy of the happy homeowner. I don't bother with plumbing because every connection corrodes and you end up with a hernia trying to undo it, or you break it and you have to go buy a "wachamacallit".