If a person wanted to build a raised bathroom so that the shower and toilet drainage does not have to be put under the concrete slab the house is built on how
5 Reasons to use a One Level Wet Room Shower vs. a Shower Base with a Curb
Another quick shower pan install. Had to level it using 2 bags of concrete the floor was so out of whack. Turned out alright though. : r/Plumbing
Can I Have A Flush To Floor Shower Tray? - UK Bathroom Guru
How to Fix an Uneven Shower Pan – Get a Level Shower Base!