In my main bathroom, it would make a lot more sense to have the toilet where the sink vanity is and vice versa. The current sink vanity space is ample for a toilet and is in an alcove, that would be a very nice space for the toilet. The toilet is on a long wall space, way too long for just a toilet. If the sink was to be moved to the current toilet location, I could have a much longer counter around the sink.
So, the space issue is OK...
Under the house they both seem to drain into the same big black pipe, that must be the "waste" pipe?
As far as water supply, there are both hot and cold "incoming" pipes in the wall behind where I would like to move the sink. (Those supplies currently serve a sink that's on the other side of the wall, in another bathroom.)
The water pressure is for lack of a measurement, BLAST.
There is enough room for the plumbers to work under the house.
Can I have this done? Are there other things that need to be in place for this switch to work out OK? It would sure make the bathroom a lot nicer, in layout. DH says "NO!", because he hates for anything to be changed. Any help with this would be very appreciated! (If he comes home and it's "done", it will be OK, as long as it works.)