Fitting a back to wall bidet toilet to a wall can be an intimidating task, but with the right tools and instructions it's actually quite simple. The first step is to make sure you have all the necessary materials: a back-to-wall bidet toilet, screws, washers, bolts and mounting plates. You'll also need a drill/driver or cordless screwdriver with appropriate bits for drilling into the walls. Once you've gathered your materials and tools, you're ready to begin fitting your new back-to-wall toilet!