3. Loosen the bonnet (or collar) at the base of the faucet and slide it to the top of the spout. Now pull the spout out of its base (figure A).4. Examine the O-rings for tightness and damage. A loose or split O-ring is probably the cause of the leaks (figure B).
5. Remove damaged O-rings and find matching replacements. Use a pocketknife to pry or cut off old O-rings.
6. Coat the new O-rings with a bit of plumber's grease before installing (figure C). If replacing more than one O-ring, grease the bottom one before fitting but do not grease the second ring until after you work it over the first and into its groove.
7. Seat spout back into place and tighten bonnet. Turn on the water and test for leaks.