You install a two-piece toilet in three phases: First, you secure the toilet base to the floor, then you fasten the tank to the base, and finally, you connect the water supply to fill the toilet with water.

A one-piece toilet is installed in the same way as a two-piece unit except that it’s more cumbersome to handle. Because it’s all in one piece, however, the installation goes faster, because you don’t need to install pieces separately.

Carefully read the installation instructions packaged with the toilet and identify the parts and then follow these steps to install a new toilet, here is some quick tutorial of how to install a c380 closet