Installing Vanity Cabinet Plumbing

One of the benefits of installing a dressing table as opposed to an open wall-mounted sink in the restroom is that the vanity conceals the pipes under the sink. Consequently, you may use easier-to-install PVC plumbing for your elastic and drain water supply lines to feed the faucet — as opposed to chrome for the drain and copper for your supply on an open sink. A homeowner with even restricted plumbing experience can install a vanity to benefit from its storage and the finished appearance it provides a bathroom.

Turn off the water source to the house and flip on an present faucet on the lowest level of the house to relieve water supply to the plumbing.

Cut off the pipe caps to the ends of both supply lines protruding to the vanity using a tubing cutter. Slide the compression nut in a water-supply valve above the tubing and place the ferrule above the tip of the tubing. Position the supply valve above the tip of the tubing and tighten the compression nut, using one adjustable wrench to carry the supply valve in place and another to flip the compression nut until it is tight. Repeat with another supply valve.

Position a new faucet above the holes at the rear of the sink. Thread the nuts on the nipples from under the sink and tighten them using a set of slip-joint pliers to secure the faucet to the sink.

Connect a water supply line to each of the supply line nipples on the bottom of the faucet with a set of slip-joint pliers. Then connect the open end of this left supply line to the left supply valve with adjustable wrenches. Duplicate with the right-side supply line.

Remove the locking nut, metal washer and rubber gasket in the threaded drain pipe. Put a bead of plumber’s putty around the flange of the drain, then slide down the drain to the sink. Slip the gasket and metal washer onto the threaded drain piece, then tighten the locking nut on the drain to fasten it to the bottom of the sink. Wipe away any putty that squeezed out to the sink.

Hold the tailpiece and then P-trap into place below the sink to determine the approximate amount of PVC which will be asked to connect the P-trap to the drain line. Cut a piece of 1 1/2-inch PVC to the appropriate length using a PVC cutter or hacksaw. Apply primer to a end of this pipe as well regarding the female drain line connector at the wall or ground of this vanity. Apply PVC cement to the primed end of this pipe and fasten the pipe to the drain line.

Slip the coupler and wrap washer above the tip of the sink drain, then insert the tailpiece above the sink drain and then tighten the coupler. Slip 1 end of this P-trap above the tailpiece and the other end above the PVC pipe in the drain line, and tighten the connectors to guarantee the P-trap.

Slip the open end of this drain stopper pull pole through the hole at the rear of the faucet. Attach the extension to the pole under the sink and then tighten the set-screw to affix the extension. Slip 1 end of the spring clip over the lever arm coming out of the drain pipe, followed by the extension and the other end of the spring clip. Pull on the stopper pull pole to make certain that the drain stopper is functioning correctly.

Turn on the water main to the house. Open the water supply valves under the sink. Examine the faucet and await any flows within the vanity cupboard.

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