I am looking at turning an old tanning salon into a preschool center. I need to install at least two additional toilets and get rid of four shower stalls. Can the toilets be installed in place of the showers?:confused:

The showers are probably connected to two inch pipe, for a commode you must have at least three inch pipe. So if you can rip out the floors enough to get to the mainline it can be plumbed for commodes.