First time (so please be gentle)
Pic for reference
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replacing the suite - basin on open chrome stand, chrome bottle trap- free standing bath with exposed chrome waste that goes onto floor underneath bath
Currently waste from basin goes to floor then right and 90 degree right to join bath waste which runs on floor (behind panel) to outside wall stack
Behind the mirror door is a cupboard (behind basin) whichl leads to another door on right (which butts the rear of the bathroom wall) where there is an accesible roof void going to the outside wall:out of pic far right (soil stack)
Joists run perpendicular to boards
Suggestions for the best way to route the wastes would be appreciated
TIA