Hi folks, I have a perplexing little problem that I need your input on.
I have been a drywall contractor since 1992 and have one problem that I have not been able to solve - it is the following:
When I am tying new drywall into a previous wall, either drywall or plaster and previously painted, and am in the taping/fill stages, I have an ongoing problem with small bubbles/pits. I have thinned my mud and have reduced mixing speed to lessen the introduction of air in the mixture, but it does not eliminate the problem. Sometimes the pitting is severe enough that I cannot eliminate it at the mud stage and have to wait until the wall is primed before I can go back in and fill the pits to get a good finish. Priming the wall seems to stabilize the pits so they can be filled.
Any thoughts/tips/tricks on how this can be eliminated at the taping/fill stages?