Nice work. Also the use of dust masks and goggles helps. It's negative pressure you've created Bob... Positive pressure to ventilate a confined space is always best, but like you said, not always possible. Nice job.

I think strange123456 is asking about using the tape for taping edges while painting, and his question is if paint will still be able to leak along the taped edge. A well taped edge will not leak, make sure to apply the tape straight and make sure it does not fold or bubble. But even the most carefully taped edge can allow a tiny bit of paint to creep under the tape due to pores in the surface, nothing major and easy to touch up! ......... Great video Bob!!! thanks for another great tip! Dave.

I used a sump discharge hose connected to my shop vac, 200 grit paper and an old Ryobi orbital sander to smooth my popcorn ceiling into a work of art. There was almost no dust at all, and the only effort involved was holding an orbital sander. Bungeeing the extension cord from the sander to the vacuum hose also helped simplify things.

Great little tip.

Where I live green/blue tape is painters tape better chance to not pull finish surfaces off door/trim/walls+++Bob

Why use green tape? Why not gray or blue?

Not sure of the brand-name ,always just referred to it as painters tape.+++Bob Also not sure what you mean by "seeping"