Your pedestal sink in the bathroom is created to hid the pipes. How do fix them when they are failing ? Take a look at this tutorial on pedestal sink pipes and learn how to do it. You will need; sandpaper, a bowl, teflon tape, PVC drain, three eighths or seven sixteenths open end wrench, water supply lines and a towel.



1) Turn the water supply valves off. If you can get to them in the bathroom, great. If you have to go outside and turn them off at the water main, go ahead and do so. Put a towel or other absorbent material at the base of the sink to catch the extra water that will be coming out.



2) Free up the nuts on the valves at the sink. Let the water pressure clear out of the system. If you do not see a lessening of water pressure make sure you have the other valves leading up to the sink fully turned off. When all the force of water is gone, take off the nuts. If your pipes are stiff or inflexible you will likely have a joint instead of a nut to remove. Use the same procedure for the joint as for the nut. Take the connections off at the closest spot to the wall that you can.





3) Trace the water pipes or lines all the way up underneath the faucets. Find the nuts that connect the faucets to the lines. Disconnect them with the right type of wrench. If you know you need new lines, now is the time to replace them. Use teflon tape on the threads of the new lines.



4) If your problem is with the drain or P-trap, do the following. Put a bowl under the P-trap to catch extra water leaking out. Undo the nuts that hold the P-trap in place. When they are free enough remove the P-trap.




5) Trace the drain pipe up to the bottom of the sink. If the nut holding it to the sink is plastic, do not use a wrench on the nut. It is a larger nut and if it is plastic use your hand and a rag to give you more grip to remove it.



6) Trace the P-trap pipe to the drain that is in the wall. You are looking for the nut that secures the P-trap to the wall. Again, if it is plastic ( PVC ) you will need to use your hands to remove it. You can use a common pipe wrench if it is made of metal.



7) When replacing drain pipe start at the sink. If you need to adjust the size of the new pipes, use the old pipes for examples of the correct length. You can cut plastic with a handsaw or hacksaw. Clean off the burs of the plastic after cutting to ensure the pipe will not leak after you are through working.



One tip; do not use PVC glue on drain pipes. One exception is that the conditions require the use of this glue.