The fixtures and fittings are a vital part of a bathroom makeover. You don’t want the look of your new bathroom spoiled by outdated fixtures do you? That is why it is important that you know how to replace an old vanity with a beautiful new pedestal sink to get your bathroom makeover off to a great start.
To begin, you must turn off the hot and cold water supply to the vanity sink. After the water is off, disconnect the supply lines, waste line, and remove the sink by either removing the entire counter top, or just removing the bowl from the counter top. With the sink removed, the vanity should be easier to un-screw from the wall and carefully removed without disrupting the existing plumbing.
With the vanity removed, the flooring may need to be patched/repaired as the pedestal sink will sit on the finished flooring. If the plumbing comes up from the floor, this will have to be addressed now by cutting out section of sheetrock and flooring if needed. Re-plumb the water supply and drain connection in the wall and use the manufacturers’ template to position the plumbing in the wall. Remember that the new water supply lines, shut off valves and drain will be exposed so using new valves with a finish ring to match room and a metal, (copper or stainless steel) drain instead of PVC will give it a professional finished look.
With the wall exposed this would be a good time to place the new sink on the pedestal to measure where to mount a 2×6 in between the studs to bolt the sink to later. After the plumbing is moved and the wall is repaired, place the sink into position on the pedestal to mark the mounting holes on the wall and the floor. If the flooring is tiled, use a proper drill bit to pre-drill and not crack the flooring. At this point, mounting the faucet, drain, and trap to the sink would be easier before is securely fastened. Now, using new braided water supply lines, attach one end up under the sink to the hot and cold fittings on the faucet leaving the other end loose for now.
For the final installation, take your time as it will be tight making the final plumbing connections. Slowly move the new sink and pedestal close to position, but not tight up to the wall yet. Connect the two water lines hanging down from the sink to the proper hot and cold water supply fittings and tighten. Now, slowly align the drain and tape while sliding the sink and pedestal into position.
Here is where it will take time to tighten the trap to the drain in this limited space being careful not to damage the wall. When everything is tight, push the sink and pedestal into place aligning it with the pre-marked holes on the wall and floor. Using the supplied lag bolts, securely fasten the sink to the wall and the pedestal to the floor.
Turn on the water supply and look for leaks, tightening where needed. Your new sink will give your bathroom a clean, open feel and look.