Considering all the operating cycles they go through, toilets generally are pretty reliable. Once in a while, though, water may continue running from your tank into the bowl after the tank seems to have refilled sufficiently.
While manufacturers of plumbing fixtures make their products as noise-free as possible and contractors do what they can to keep your plumbing system quiet, you still may get noise of one type or another, especially if you are in an older home.
We all want our hot water when we want it. And while hot water heaters are among the most reliable devices we live with, it still makes sense to check them out from time to time to be sure you’ll be in hot water when you want to be.