Keep in mind your storage needs, size requirements/limitations, and personal tastes when making you selection and consider asking professional advice from a company like Clapham Plumbers .?Installing a vanity cabinet and sink is good way to get more storage and countertop space in your bathroom.?The water lines should have caps soldered or glued and you’ll need to cut them off once the vanity is set. Measure the water and?drain line locations. Transfer them to the back of the unit and cut the holes out.?Cut the vanity’s sink opening if it isn’t already. Set the vanity over the lines and against the wall. Check that the cabinet is setting level/square and secure it in place.Vanity Sink (connection).Connect the spout, water valves and handles to the sink. Link the supply T and hose assembly to the spout.?Attach the water supply lines to the valves if possible, to avoid reaching up under the sink later.?Apply plumber’s putty (used by a Clapham Plumber ) around the drain fitting to form a seal and seat the fitting in the drain hole. Add a washer and slip nut on the bottom and tighten the fitting.?Fit the drain stopper coupling and its gasket so it is in line with the back of the sink unit. Push the stopper’s slip arm through the sink?and connect it to the coupling. Push the stopper fully open and tighten the arm. Lift the sink up and place it in the cabinet. Remove any plugging the drain stub. Use adhesive to fit a threaded adapter coupling onto the drain stub. Fit the trap and screw it to the adapter and sink drain.?Tighten the sink water feeds to their shut-off valves. Slowly open a shut-off, check for leaks, then check the other line.?Fill the sink, check for leaks around the drain, then drain the water and check the waste line joints. This will also put water in the trap to stop sewer gases.?Seal around the rim of the sink to finish off the installation.