When a new sink is purchased, the new sink drain needs to be installed so that water can drain from the basin into the drain outlet. This process also takes place when the existing sink and drainpipes are being replaced. Homeowners should learn how to install a bathroom sink drain, so the project can be done quickly and easily when it becomes necessary.
You will need:
Step 1: If replacing existing pipes, measure them and purchase new pipes of the same dimension.
Step 2: Turn off the water supply to the sink.
Step 3: If pipes are being replaced, remove the washers and plastic nuts connecting the traps and pipes. Locate the hole at the bottom of the sink bowl and insert the drain section into it. Screw this piece on using the washer from the drainpipe kit and the pipe wrench.
Step 4: Connect the straight section of pipe included in the kit to the washer. Use the pipe wrench to help with this task.
Step 5: Connect the J pipe, also referred to as a trap, to the straight section of pipe, using the pipe wrench.
Step 6: Connect the remaining bent pipe from the kit to the J pipe and the drain outlet contained in the wall.
Step 7: Pour some water down the drain and check for leaks. Ensure that washers are secure and tighten connections as necessary.
Step 8: Install faucets separately, if necessary.
Step 9: Turn on the water supply to the sink.




























August 9th, 2011 at 8:59 am
As a plumber myself I get a lot of call outs to properties were people have attempted at installing a sink themselves and have called me out to fix the issue. This guide is very helpful and well written.
August 16th, 2011 at 7:49 pm
There is no mention of using plumbers putty in the drain. When one has the normal sink that has the over flow section that goes into the drain where the pop up water sealer is above, do you put plumbers putty above this and also below the sink where the drain trap flange nut washer fits up against the sink bottom??
August 20th, 2011 at 12:24 am
Most drains you will want to put a sealant on top but on the bottom side there should be a big bevelled rubber washer with the drain