Ask This Old House plumbing and heating expert Richard Trethewey helps a homeowner in Delaware replace his cracked pedestal sink. (See below for a shopping list, tools, and steps.)

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Richard installed the Cimarron pedestal sink with 8" widespread faucet holes and the Kelston widespread bathroom sink faucet, both manufactured by Kohler [https://bit.ly/2HmgwKC].

Shopping List for How to Replace a Pedestal Sink:
Pedestal sink kit
Bath faucet
Braided hose connectors

Tools for How to Replace a Pedestal Sink:
Openend wrench
Socket set
Pliers
Caulk gun

Steps for How to Replace a Pedestal Sink:
1. Turn off the water supply to the sink.
2. Use an openend wrench to loosen the nuts on the hot/cold water connections.
3. Use pliers to break the drainage connection.
4. Loosen lag screws holding the sink onto the wall using a socket set.
5. Release the caulking attaching the sink to the wall using a utility knife.
6. Lift the sink off the pedestal and remove the pedestal.
7. On the new sink, attach the new spout by surrounding its base with plumber’s putty and inserting it into the center hole. Tighten up the connection using an openend wrench.
8. Repeat the same steps for both the hot and coldwater handles.
9. Attach braided hoses to handles using an openend wrench; then do the same to attach the hoses to the spout piping.
10. Insert the pivot rod into the drainage pipe.
11. Adjust the clevis pin’s connecting bar to the right height and attach it to the pivot rod.
12. Place entire assembly on the bathroom floor where previous pedestal sink stood.
13. Line up drainage pipe to fit into wall thread. Handtighten it. Then, use the openend wrench to snug it up.
14. Insert new lag bolts through sink fixture and into the wall. Tighten with socket set.
15. Using openend wrench to connect braided hoses to hot/cold lines.
16. Put a layer of caulking along the back of the sink for added connection to the wall.
17. Turn the water supply back on.

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How to Replace a Pedestal Sink | Ask This Old House
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