Leave the faucet and drain pipes attached for now.
Remove sink attached to wall.
Assess what type of sink you have.
Kitchen sinks come in 2 basic designs.
Make sure all connections to the sink have been released properly.
Under mounted which are attached to the countertop from underneath or drop ins which simply drop into the sink opening in a countertop.
Remove all screws with a drill or screwdriver.
Employ the assistance of a helper to make sure the p trap successfully moves off the wall while the sink is also moving.
Remove the vanity cabinet.
Use pliers to disconnect the drainpipe and garbage disposal from the sink drain.
More often than not a pedestal sink s mounting holes will not line up with existing wall studs.
If there isn t an allen wrench look for snap rings and remove by loosening the screws attached to them.
They will be easier to disconnect from the wall once the pedestal is removed.
How to attach a pedestal sink to the wall without studs.
Remove the sink from its wall mounting bracket by lifting evenly upward approximately 3 inches from both sides of the sink near the wall.
Loosen the nuts securing other piping that runs to the sink drain such as faucet and sprayer connections and remove these as well.
If the cabinet is attached with nails carefully pry it away from the wall with a flat pry bar.
After this carefully lift up the sink and slide the pedestal out.
Most are fastened with a few screws.
Remove the p trap from the sink drain.
Remove both the dishwasher drain line and the garbage disposal.
To remove the pedestal sink to gain access behind it remove the caulk under the sink bowl and the caulk near the bottom stand at the floor.
Step 4 pull the sink away.
The sink bowl is usually attached on the wall mounted on a bracket and by simply lifting up on the sink it will detach from the wall.
Use a utility knife to sever any caulking between the back edge of the sink and the wall if applicable to ease removal.
Check inside the cabinet to determine where it is attached to the wall.
When your walls lack the studs to.