In other words, the traditional type of sink installation in a special slot in the countertop. Such designs are more common in modern kitchen interiors. Their distribution is facilitated by a large number of design and functionality options, including the presence of one or more bowls, wings, rear or side walls, additional work surfaces. https://gterahub.com/community/read-blog/836_how-to-maintain-your-flush-tank-and-seat-covers-for-optimal-performance.html