The main difference between the bottom of the toilet and the effluent.
Mainly based on the distance between the drain pipe and the wall to choose
Installation Note the distance from the wall to the toilet, and the pitch
Drainage direction is not the same, most of the toilet under the water pipes are on the floor, so the basic are under the water;
There are also under the water pipe installed on the wall, which is after the water, also known as wall row of toilet.
