I need to install a new vanity in my bathroom but I'm not sure what to do about the plumbing for under the sink. I believe the present location of the sink was originally where the bathtub was. The pipes for the faucet come out of the floor behind the sink on one wall. The drain pipe goes through another wall (on the left side) and also through the floor. It is awkward and takes up a ridiculous amount of space and is making it difficult to choose a vanity. Would you be able to tell me what would need to be done to fix this problem? Is it a simple fix or is it something major? I would appreciate any advice or suggestions.