lift plank floor?

[jokkeh]

I apologize if this post is in the wrong forum section, I tried to find something that fits...

We moved into a new house a year ago, now it's time to tackle the unfinished upper floor.

According to Smålandsvillan, the upper floor is "prepared for a bathroom," and we can see where the water pipes come up, but we don't know where the drain is.

The floor on the upper floor consists of chipboard, looks like it's nailed.

Is it possible to lift these to locate where the drain is? How do I do that?

Jocke

 

[para]

The chipboards should be glued, both to each other through the tongue and groove and to the joists.
In that case, no one lifts them up.
Don't you have a drawing? Otherwise, call smålandsvillan