Q: I was going to replace my bathroom faucet, but when I tried to turn off the water under the sink, the valve started leaking and it won’t stop. I’ve postponed the faucet replacement until I can ...

Tighten the packing nut on the toilet shutoff valve one-eighth turn clockwise to try to seal a leak around the nut. Pro tip: Wrap cloth or masking tape on the plier’s jaws to protect the nut’s finish.