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Plumbing for new pedestal sink comes from the floor??

I want to install a pedestal sink in my bathroom. The plumbing for the old sink comes from the floor. So my question is, how would you do the plumbing for the new pedestal sink? Can it be done coming out of the floor? Will it be really hard to do?

Public Comments

  1. You looking for functionality or form? To dress it up you could use some shiny piping or something that would encase the piping. Sounds like a cabinet might have been there before?
  2. IF THE PLUMBING IS CLOSE ENOUGH TO BE HIDDEN BEHIND THE PEDISTAL THEN THERE IS NO PROBLEM.BUT IF THE PLUMBING GOING TO SHOW THEN YOU WILL WANT TO EITHER MOVE THE PLUMBING INTO THE WALL OR MOVE THE PLUMBING CLOSER TOGETHER TO HIDE IT BEHIND PEDISTAL THIS SHOULD BE DONE BY AN EXPERIENCED PLUMBER
  3. My pedestal sink has a U-shape on the base to contain the pipes, so it's possible. Look at the base and ask questions when you buy it and you should be OK. You should measure the distance to the wall for the sink, so you know the pedestal base will be under the sink properly, and that the pedestal will still have the clearance to house the pipes. Otherwise you will have to make miserable adjustments to either the wall or the pipes to deal with the distance. Good luck.
  4. To do this job yourself, and make it look good, won't happen.It very much sounds like you removed a cabinet and plumbers don't really care about pipe conformity in applications like this. Most pedestal sinks not only require a certain pipe conformity, but also requires a certain amount of skill and proper tooling to install, therefore my answer is replace with a cabinet or call a plumber. I hope this does not come across as disheartening, if you feel up to it by all means go for it, but have an ally in the sidelines if you run into problems. Best of luck.
  5. the reason the plumbing comes through the floor instead of out of the wall is because the original plumber bid the job for a cabinet not a pedestal. the difference is: in a cabinet you do not need to extend a vent pipe through the roof. there is something called an air admittance valve. this is a type of vent that can be hidden inside your cabinet. it is easier to install than running out of the roof. chances are, it is a powder bath that you are trying to put the pedestal in, the toilet is also vented by the same air admittance valve. that is called a wet vent. you need this vented. air admittance valves need to be located a minimum of 4" above the fixture drain. because you are installing a pedestal you need to have drywall backing behind the lavatory so you need to cut drywall anyway. you should cut out as much as needed to install backing. then cut between the studs about 8" below the ceiling and install an air admittance valve box. offset the pipe into the wall from below. run the pipe to the box and put on the air admittance valve. drywall. cover the box with a grill. install pedestal lav. it would probably be easier to find a plumber that works on the side. i would charge about 300$ but i would only cut the drywall, not replace it.