I have some joints that have to be retaped, and I would like to have any advice on how to match the existing knockdown texture after I repair the tape job. The original drywaller had an air compressor and gun to splatter drywall compound and then knocked it down with a wide drywall knife. I have an air compressor but not the gun. I haven't checked if it is possible to rent a gun or what it would cost to buy a gun.

Hello everyone, We have a window in our shower that had small glass tiles around the perimeter that were beginning to bubble and had to be torn out. Whoever put the glass tile up did so over old plaster walls. When tearing out the tile the plaster came with it. We are going to put new glass tile up but need help with some questions. 1- how can we make a surface to tile on? The old plaster is gone and now we have an uneven surface. 2- Would ditra be suitable in such a small place or should we attempt cement baker board? 3- what is the best way to waterproof to make sure this doesnt happen again. Here are some pics. (you can see the old glass tile)