By using the information in this article as a guide, installing a pedestal sink is possible by a homeowner who wishes to do it him or herself. The pedestal sink, being the most delicate sink to install can be one of the most difficult installations also.
One of the first decisions for this installation is the actual pedestal sink. When choosing a pedestal sink, the size of the bathroom where the installation is taking place determines the width of the sink. There should be a minimum of 6 inches between all the fixtures in the bathroom to keep the bathroom from being crowded.
If replacing the old sink, first shut off the water supply going to the sink, including the hot and cold valves located on the wall. If no valves are located on the wall or if the valves will not close, shut the water off at the main shutoff for the house. If there are no valves, installing shut off valves should be part of this installation. When the water is turned off at the main shutoff, locate the lowest cold and hot water fixture and open them to drain the water away from the area where the installation is taking place.
After shutting off all the water, the installation can begin. To remove an existing sink, use a pair of channel locks or pliers and remove the water supply from the sink, then remove the sink. Now the area is ready for the new installation. Use a carpenter’s level to ensure that the new sink is level at each phase.
There are two ways to mount a pedestal sink. The first is to mount the sink via the pedestal and the second way is to mount the sink to the wall with a wall hanger. To mount the sink via the pedestal, there should be a mark placed on the wall determining the exact location to place the sink top.
To find this location, with the help of a second person, carefully hold the sink and pedestal in the exact location where they will be installed, and mark the spot on the wall by tracing the sink top with a pencil. After marking the wall, gently lay the sink top and pedestal on the floor. While the sink is on the floor, temporarily place the hanger on the sink where it will be attached. Measure the distance from the top of the sink to the screw holes on the hanger.
This measurement is important to mount the hanger on the wall because the mount must be perfectly level and secure as possible. If possible, a secure 2×4 should be installed between the two studs where the hanger will be mounted, aiding in the mount securely holding the sink. Toggle bolts can also be used to mount the hanger, but whatever is used, make sure the hanger will not come loose from the wall.
The next step is to connect the drain or pop up assembly onto the sink. While the sink is on the floor, install the pop-up assembly or plug assembly onto the new sink. Apply plumber’s putty the chrome lip that contacts the sink. Be sure to use all the parts and rubber gaskets that came with the pop-up, do not have parts left over. Use Teflon tape or pipe dope when threading the threaded tailpiece. Now tighten all the connections.
The sink is now ready for the attaching the faucet to it. After attaching the faucet, connect the water supplies to the faucet using stainless steel flexible water supplies that are 12 inches long.
After carefully mounting the pop-up assembly, faucet and water supplies to the sink, mount the sink to the wall, and to the pedestal. Now mount the pedestal to the floor if that is your plan. Now that the sink top and pedestal are mounted, install the P trap. The pop up assemble is 1 so all the waste pipe should also be 1 making the P trap needed 1 . If a tailpiece is needed it will be needed to be 1 also.
Purchase chrome-plated brass traps and brass tubular waste pipe and use a 1 rubber washer at each joint. Also, install the chrome flange that comes with the P trap. Now connect the water supplies to the hot and cold shut off valves, turn on the water, and test for leaks by shutting the drain, filling the sink, and letting the water drain several times. If there are no leaks, the installation is complete.