Here are a few photos showing the right way to install a washer and drier in an upper level floor where a leak or overflow can cause serious damage. This new washer drier location is on the first floor close to the kitchen.
You can see the lovely galvanized pan with a PVC drain.
You can see the plumbers are reading installation instructions.
Our plumbers always use what’s called a “rough in box” for hot and cold water. It has an integrated shut off to help prevent flooding. We vent the drier to the outside, not into your attic.
Viola! Storage and hanging rod will go to the right of the new units.