New answers tagged preparation
I've heard from professional drywallers/painters that they don't even try and take all the dust from sanding off, just a quick sweep of the walls to get the majority off. The really fine drywall dust will add itself to the primer coat and help smooth it out. I tried this approach when I remodeled my living room and the results were great.
You didnt have to use a mop, for next time all you have to do is take a broom to it and sweep the dust off, put some primer on, wait for it to dry and then take a pole sander to it, and dust clumps left on the wall is forever gone.
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