If your faucet connection leaks, you probably just need a new rubber hose washer. They are a couple of bucks at the hardware store. That said, I always run mine with the faucet full open. I have also found that stirring the wort continuously with a sanitized spoon while it is being chilled makes a big difference. It only takes 10 minutes to get the wort down to pitching temps. Otherwise, the chiller cools the wort immediately surrounding it while the stuff around the outside of the kettle remains hot.