Popcorn is down, need more help

I have scrapped the popcorn is down in a bedroom and bath. Not too bad really–followed advice on previous posts. Now I have sanded and tried to smooth some divits with joint compound. My question is this. The ceiling is very dusty with dry powder everywhere. Do you have to get rid of all of this before priming? Is there a wet-sanding step that needs to be done or just basically “mop” the ceiling. Or […]

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