I got a big problem. A decrotive concrete sub did a job for me, they extended a patio and poured a new sidewalk and it all has a rock salt finsh. The orginal plan was to use a dry stain type finsh. You put down a powder substance and the seal over it. The existing patio was done this way however the customer didn't like it much. So the sub talked us in to what they called "spray deck" Turns out the term spray deck is really a texturing process. A lot of times it's then painted over. So what the sub did was paint all this concrete using a water base paint and now it's coming up pealing all over. They came out yesterday and pressure washed it. There are still big areas that haven't come up yet. They want to re-paint but I'm saying not so fast. I know with a pressure washer you can take even good paint off anything. This paint that has come off either came up easily or sometimes you had to try a little. The areas that haven't come up is what bothers me. Not only am I worried it will peal up later but also what made the peal in the 1st place is still not known. Im thinking ahead here of maybe a worse case situation. Getting all the paint up and staining. Does anyone know the best way to get paint up off a concrete floor. I know I can pressure wash it but if it doesn't come up easily then its going to be hard as hell to get it off. There are concrete grinders. Floor strippers etc. Anyone ever done something like this?