Cleaning off old plaster that was applied directly to cement blocks to prep for drylock?

Question

i want to chip off the old plaster that is directly on cement block in my basement so that I can drylock insulate and drywall. My question is how do I clean off all of the loose particles? Is there a type of brush with a vacumn I could use? Any ideas?

Answer 1

The sad reality is the one thing that will work is  "Elbow Grease".  They do make wall sanders with a vacuum attachment.  Porter Cable  makes one that is specifically designed for sanding drywall mud.  

This might work for you, but am not sure it is what you are looking for.  The tool sells in excess of $500.00 US.  But you can rent it for a lot less, at least by me you can.

Good Luck

Answer 2

You didn't tell the whole story. Hard to tell what you mean. But here goes. A side grinder with a wire wheel will remove loose. But if you are going to frame , insulate and drywall, why remove. Just frame.