Product review (5 stars): Clean before replacing
These should last for many years and can be easily cleaned - possibly without removing them. I just used Lime Away and sprayed on a generous amount, let sit a few minutes, thoroughly wiped away excess then shop vac the rest to be sure. I then ran a rinse cycle (without dishes of course) and so far, no more leaks. IF you have just a small amount of water leaking, say maybe a cup or two at most, then these plugs could be the problem. If not these plugs, check your door vent for dried and caked on dishwashing powder and clean. Lastly, if you think it could be the door gasket, while you have the LimeAway out, spray around the door gasket too, and wipe off access thoroughly and run a dishless rinse cycle. Of course, if there is a larger amount of water pooled on the floor, you will have to remove the bottom kick panel and check the water inlet valve and check directly under the pump and around the drain hose - but those are more serious problems to repair.