If you are going to install a faucet in the bathroom with your own hands and want to do it extremely carefully and efficiently, then professional advice will definitely not hurt you. In fact, there is nothing complicated here, but some nuances are still worth knowing.
For a high-quality installation of a water outlet hidden in the wall, you will need a mixer. Then you will need to make a template from a board or plywood 10 mm thick. The thickness is selected taking into account the thickness of the tile and tile adhesive (for example, if the tile is 7 mm and 3 mm thick adhesive, then the thickness of the template is 10 mm).
Next, you need to drill a hole in the plywood with a diameter for the water outlet. We draw a central line (along the workpiece) and drill two holes for fasteners at the edges: dowel-nails, eccentrics and reflective cups.
The main stages of work
After the mixer has been fixed, it is necessary to make it so that the cup fits snugly on the nut (so that the threads from the eccentric are not visible). Moreover, the cup itself should fit snugly against the plywood template.
To do this, between the plywood and the water outlet, a spacer is installed - a piece of polypropylene pipe. The result is a tight fit, there are no gaps and no threads are visible. Everything is neat and of high quality.
At the last stage, it remains only to fix it all to the wall. For details on how to install a faucet in a bathroom with your own hands, see the video on the website.