Utilizing Beccaria's, describe what he meant with these recommendation to prevent

I have a concrete floor. Currently there are three toilets, and one sink. I have removed one of the toilets in an attempt to install tub/shower combo using the 4" opening the former toilet drained into. The opening of the tub drain sits in front of the former toilet opening. How can I plumb the...

I am remodeling a basement bathroom. I demo'd the shower and its tile to reveal rotted framing. I believe this is due to an improper or (more likely) not existant shower pan -- there was no water proof membrane between the tile/thinset and the the framing. Can I build a proper shower pan...

Hello! A few years ago, I moved my washer/dryer from an inside washer/dryer inset located in my kitchen into the garage. I turned this area into a pantry and left both the hot and cold water valves protruding from the wall, as well as the 220 for the electric dryer. I'm tearing out the...