Very carefully. you have to remove the basin first by unscrewing the bolts that screw onto the basin to the wall. unless it has been installed with epoxy then you are in trouble.
12" on a kitchen, 17" on a lavatory, 19" on a pedistal for 1 1/2" drains. two hots @ 10"& 21" high(the 10" high hot is for the dishwasher), one cold @ 21" on the kitchen, 21" on the bath 8" apart on center under a cabinet, 4"-5" on center for a pedistal(so it is hid behind the sink).
Hot water makes piping expands thus the drain becomes smallerl
Place some towels under the sink to catch any drips while doing this procedure. Turn off the valves under the sink that supply water to the faucet. Disconnect the supply lines to the faucet. Place a bucket under the drain pipe. Disconnect the p-trap. Drop the trap into the bucket. The mechanics of the sink have been disconnected now the sink needs to be removed. If it is a pedistal sink, look for screws or bolts unterneath by the faucet. I've installed in vanity, those sinks are usually glued to the cabinets. Use a prybar to separate it. http://www.lets-do-diy.com/Projects-and-advice/Bathroom/Basins-and-bidets.aspx
To remove a plug from a sink, simply reach into the sink and grab the plug. Twist and pull it out of the drain to release it.
To remove the drain plug from a sink, locate the plug underneath the sink and twist it counterclockwise to unscrew it. Pull the plug out of the drain to remove it completely.
To remove the drain plug in a sink, locate the plug underneath the sink and twist it counterclockwise to unscrew it. Pull the plug out of the drain to remove it completely.
To remove an undermount sink, you first need to disconnect the plumbing connections. Next, loosen and remove the mounting clips or brackets securing the sink to the countertop. Carefully lift the sink out of the opening in the countertop.
To remove a faucet from a sink, first turn off the water supply. Then, use a wrench to loosen and remove the nuts securing the faucet to the sink. Once the nuts are removed, lift the faucet out of the sink.
If you are caught sleeping............................If you are in the batroom...............................
The United States did.
The correct spelling is "pedestal."
To remove a faucet from a bathroom sink, first turn off the water supply. Then, use a wrench to loosen and remove the nuts securing the faucet to the sink. Once the nuts are removed, lift the faucet out of the sink.