How do you change bathroom sink?

Answer 1

# When you replace a countertop sink, the replacement sink should be the same size or slightly larger than the original sink for a secure fit. Double-check the measurements of your old sink before purchasing the new one. Measure the length, width and depth of the old sink.

Measure the critical dimensions of the countertop. # Measure the width of the countertop.
# Measure the distance from the front of the sink to the edge of the

countertop (F), and from the back of the sink to the wall or backsplash (B).

Breakdown of pipe assembly # Bring the sink and countertop

measurements with you to the store.

# List the hardware you need or plan to replace: faucet, trap, tailpiece and supply lines. Disconnecting the Plumbing #

Always use padding between

wrenches and couplings to

avoid damaging the finish. # Turn off the water supply. In most bathrooms, the shutoff valves are located under the sink. If not, turn off the water at the main water-supply valve. Test the faucets to make sure the water is off.

Cutaway of a sink clip # Place a bucket under the trap. Loosen the slip nuts on the trap and remove it. Empty the water from the trap into the bucket. If there is a tailpiece connected to the drain assembly, remove it as well.

# Disconnect the supply lines from the faucet. All of the Plumbing should now be disconnected from the sink. Removing A Counter Top Sink # If the sink has clips, loosen them from underneath the counter. If the clips won't detach, break them off and throw them away. Be careful not to damage the counter.

# There should be a bead of sealant between the counter and the sink rim. Cut the seal along the rim with a utility knife or wedge it apart with a small pry bar. If you use a pry bar, put cardboard or a rag under it to protect the counter.

# Lift the sink straight up out of the counter. You may need a helper if the sink is too heavy.

# If the sink and countertop are a one-piece unit, there should be sealant holding the countertop to the vanity. Use a utility knife to cut the seal. Be careful not to chip the vanity when breaking the seal. Remove the countertop and sink. You may need a helper if the unit is heavy. Removing a Wall-Mounted Sink # The sink may be heavier than you realize, so ask a helper to hold the sink while you disconnect the plumbing. If the wood behind the sink is rotten, the plumbing may be the only thing holding it up and disconnecting the plumbing could cause it to fall.

# If the sink is mounted in a bracket, you should be able to lift it out as soon as the plumbing is disconnected.

# If the sink is bolted to the wall, have a helper hold the sink while you remove the bolts. Once the bolts are removed, the sink should be free. Installing the New Sink # Install the faucet in the new sink.

# Put a ring of plumber's putty on the drain flange inside the sink. Insert the drain assembly and install any washers provided. Tighten the locking nut until putty squeezes out from the drain flange. Wipe away excess putty.

# Turn the sink upside down on a towel or other nonabrasive surface. Run a 1/4" bead of silicone or latex caulk under the sink rim.

# Carefully lower the sink into position. Press down firmly until caulk squeezes out around the rim of the sink. Wipe off excess caulk.

# If the new sink requires clips, install them at this time.

# To install a wall-mounted sink, see Installing a Pedestal Sink. Connecting Plumbing to the New Sink # Make a final tightening of the drain assembly.

# Connect the supply lines to the faucet tailpieces.

# Connect the stopper assembly according to the manufacturer's instructions. If you are using the old fixture, see Repairing a Pop-Up Stopper.

# If the drain requires a tailpiece between the trap and the drain assembly, install it now. Install the trap. Check all of the connections for tightness.

# Turn the water back on and check for leaks at the faucet. If leaks appear, shut off the water and re-check the connections. Tighten the connections slowly until the leak is stopped.

# Turn on the faucet and check the drain for leaks. If leaks appear, tighten the slip nuts carefully until no leaks are evident.

Answer 2

Take the old one out and put a new one in. More detail? Alright. I'll assume you mean the drain, the large center pipe. It is most likely in 4 pieces. A straight section under the sink, then the trap which has two pieces and then it goes out the wall or down through the floor. Each section is connected to the next with a nut. There should be a bevel washer under each nut that seals the joint. Unscrew the nuts on both ends of the piece you want to replace and slide the nut up out of the way. There is water in the trap so put a pan or bucket under it before you loosen the nuts. Then you take the old one out and replace it. Most places, you can take the old one in and tell them you want one like it and they will get you the right one. Plastic is preferred because it will not rust out. Don't over tighten it when you put it back, just as tight as you can get it with you hand is usually enough. If you use a wrench, be gentle.

Answer 3

You just do it. Probably shorten the pipe going into the wall or turn the trap back on itself so it curls around. Pedestal's are tight sometimes, but there is usually a way to do it.

Oh!!! that was very enlightening......duh

Apparently my first response wasn't detailed enough for some people. Simplest way is to take the sink off the pedestal. Disconnect the supply lines at the shutoff valves, the drain at the trap and the two screws that hold the sink to the wall. Lift off the sink, replace the drain and reinstall.

Answer 4

Most wall mounted sinks hang on a bracket. Disconnect the supply lines and the drain. Look under the sink along the bottom edge, some sinks have a screw on each side to hold them in place. If there are no screws, lift straight up on the sink. Raise it about 1 inch and it should come off. Depending on the size of the sink and it's age it can weigh 30 pounds or more.

Answer 5

I will assume a bathroom sink? In the first section of the drain under the sink, on the backside there is a rod sticking out that is attached to the pull up on the faucet. It is held in place with a nut screwed on to the back of the drain. Take it loose, pull the rod out and the stopper will lift out of the drain. Reverse the process on the new one. You have to make sure the rod goes through the hole in on the bottom of the stopper.

Answer 6

You shut off both valves underneath, remove the pipes to faucet, then remove the two nuts holding faucet to sink. Now pull the faucet up and out. Get new faucet AND two new pipes, SS braided rubber pipe, not the grey plastic junk. Install everything in reverse order. The braided hoses go on as is, no tape or compound, and don't overtighten them. As tight as you can get with a 6" wrench is good.

Answer 7

This depends if this sink is a drop in sink or over plated sink. Single bowl or double bowl and the shape of the sink and whether it has faucets (taps) or a single lever mixer.

Answer 8

BUY THE EXACT SAME BASIN, TAKE THE OLD ONE OUT AND REPLACE IT WITH THE NEW ONE