Long time reader, first time poster... so I thought I had my bathroom wiring layout pretty well nailed but the guy in the electrical department at the local big box store made me rethink my entire plan.
My original plan: 20A feed to bathroom from breaker box. That goes to the same wall box as GFCI outlet. The feed line from breaker is pigtailed to both the GFCI outlet above the sink (plus one normal outlet fed off this GFCIs LOAD) and the other feed goes to vanity light/fan/ceiling light 3-gang switch box. Inside 3 gang I would have a dead-front GFCI, a combo vanity light/fan switch, and a dimmer switch for the lights. The ceiling light/fan need GFCI because the manufacturer says so above the shower (broan 744).
Now the issue: The guy at (big box store) said you cannot have two GFCI on the same circuit at all because it will make neither of them trip and to just run the light/fan/vanity light all off the one GFCI. I feel like this is a big no-no because if anyone trips the GFCI while they are in the shower (like a curling iron left on sliding into the sink) the lights will be off and they will have to get out of a slippery wet shower in the dark or even if they were just using a curling iron while in front of the sink they wouldn't be able to see to set it down. I think my original plan would eliminate this because if the GFCI on the outlet plug blows then the lights (on a different GFCI) would not blow. He also said I cannot use canned IC recessed lighting in a bathroom at all without a glass shower trim ring. I was under the impression that you could use normal baffled recessed lighting in a bathroom as long as it was not above the shower.
Is my proposed setup unsafe? I don't care if I am wasting money on an extra dead-front GFCI if it means the lights stay on when my girlfriends ancient favorite blow dryer starts. Also, I know I could just run another 15A lighting circuit to the breaker box but I am all out neutral lugs (generator transfer switch install, it's a mess I didn't do it). Thanks for your time :)