It is not a problem at all. But you will have a 2" gap between the back of the tank and the finished wall.
If I have a 10 in rough in toilet how do I change it to a 12 in one?
I can be but the toilet needs to have 24" in front of it to be legal. Plus you cannot tie your shower drain in the the horizontal branch of the toilet.
Yes, but PVC creates problems
Usually toilet flange is glued down onto plastic drain pipe. There is a toilet flange that can be glued inside of plastic drain pipe also.
Yes as long as the drain has a trap and is vented
The bolts that come from the drain and run to to toilet help to alaign proper drainage and seal the toilet. You do not want to do the bolts set in cement idea...
Do the rest of the fixtures in the bathroom drain well? If they do not drain well, my guess would be the venting of the plumbing system. If all of the other fixtures in the bathroom drain well, then there is probably something in the trapway of the toilet. Assuming it is just the toilet that is having problems, then a closet auger might do the trick. Hope it helps.
either the vert is plugged and there is no air getting through or there is no vent at all
Installing a new toilet in a bathroom is a basic do-it-yourself job that can be done by a single person, although an extra hand may be helpful. First, the rough in measurement must be taken, which is a distance between the back wall and the drain connected to the toilet bowl. Next, the water supply in the bathroom must be turned off and the water from the tank needs to be flushed. After that, it is a matter of unscrewing a couple of bolts, removing the wax ring from the drain, cleaning the flange, and installing the new toilet bowl and tank. It is important to seal the drain with a cloth or bag while working, because harmful sewage gases can leak inside the bathroom.
On a standard toilet in America the drain is 12 inches from the back wall to the center of the drain.
The toilet itself is plugged or the pipe from the toilet to the drain is plugged. It may be that the tub and sink have their own drain pipe that may connect to the main away from the toilet drain. Plunge the toilet or sometimes if you fill a 5 gallon bucket with water and pour it into the toilet as fast as it will take it, that will flush out the line. It is a greater amount of water all at once an forces out what the clog is.
The drain from the toilet to the main drain is plugged and the branch to the shower is not. If the main floor toilet flushes, it is between the two toilets and not between the house and the sewer.
Your drain line is plugged somewhere after your shower and toilet line are connected. The reason for the gurgle in your toilet is because air is trapped in the drain and your toilet is the closest place for air to flow to. If you had a vent on your toilet trap arm then it would gurgle in the vent rather in your toilet but your drain is still plugged and needs to be snaked out and maybe your drain line needs to be examined for right grade or broken.