Using such a Y-connector would mean that you have mono everywhere. If that is ok with her, you can do it.
OTOH, the electrician is responsible for screwing this up. Whether she wants to make a case of it will depend on how competent this guy was supposed to be and how explicit your instructions were. I wouldn't stand for it. Doing the wiring before the drywall goes up will never be possible again.
Kal
OTOH, the electrician is responsible for screwing this up. Whether she wants to make a case of it will depend on how competent this guy was supposed to be and how explicit your instructions were. I wouldn't stand for it. Doing the wiring before the drywall goes up will never be possible again.
Kal