There has to be a tank pan under the hot water tank with a drain hooked up to the pan. If the tank leaks, it will go into the pan which will flow into the pipe that you have to have hooked up to the sewage system.
You have to take the floor apart and reduce the piping to 2". You also have to install a p-trap as there are NEVER p-traps under toilets. All p-traps are BUILT into toilets!!!
The toilet itself is easy to install but the plumbing would have to be rerouted by a professional. You just drill the floor and it's 2 bolts.
Decide if it is feasable. Are there drains already in place ? Does the existing main drain go through the floor or out the wall. If it's out the wall, you would need to install a pump for the sewage. If it is through the floor, you will have to bust out a section of the floor to install drains if none exist. Fairly expensive and labor intense. so you have to ask if it is worth it. After the drains are dealt with, it is just a matter of walls, plumbing, and fixtures.
Roughed-in plumbing refers to plumbing (water and waste lines) installed for future fixtures, for example, a bathroom in a basement. Stops refer to shut-off valves on water supply lines, required to shut-off the water to repair the fixture that they service. So "Rough-in stops" are shut-off valves on supply lines that are roughed-in. If they were not roughed-in, you would need to break concrete floor (to install waste lines) if/when you decided to add a bathroom to your basement family room.
Yes, this will be an easy switch because the proper plumbing is already in place. You will just need to remodel the area where the tub was because the floor underneath will probably not have any tile on it.
it depends on how your lines run. usually it woulden't effect anything but if your sewer line is to close to some of the fixtures in the upper floor the suds from the washer could back up into the other fixtures.
No PVC is acceptable, you can join the new PVC piping into the existing Cast Iron.
Mesa Plumbing Company is a good Arizona plumbing company. This company can replace the entire plumbing system in your house and add a half bath on the first floor.
plumbers tape, for securing plumbing pipes to wall /floor stus etc. try a plumbing supply.
If it sits over a cement floor, then no. If it is a nailed down floor, then you can, but you still have to install a cement board.
By strict calculations OR install the pipe longer then needed and after the finish work cut the pipe to the required height and install the flange
You should install the tile floor first. Install tiles on the entire floor, even under where the vanity will go.