After that, the bath is installed in the place where it should stand. And bring a sewer pipe to it. If necessary, you can install a siphon so that the large parts of the dirt do not clog you the sewer path. Next, you need to sew the bath on all sides with special bricks, foam block panels or you can make a wooden frame, which can then be sewn with lining. But it is best to make such walls of brick, and then install tiles on them.