Dear James: Whenever one of the kids flushes a toilet while I am showering, the water gets very hot. Would installing a new type of shower valve help, and can you give me some do-it-yourself tips? -- ...

That old faucet has been there since the house was first built. It has performed well over the years, but now it’s kinda leaky, maybe even a little grungy from hard water build up and it is hard to ...