Toilet type:
Trick 1: The glaze of a good toilet is shiny and slippery. You can feel it by touching it. A good toilet is heavier, the density of porcelain is higher than that of teaching, and the water absorption rate is lower. Tap with your finger and the sound will be crisp!
Trick 2: Trick 2: How to measure the pit spacing, after figuring out the structure of the sewer pipe, the next step is to set the pit spacing for the water output of the toilet. Generally speaking, bathrooms can be divided into horizontal rows and floor rows. The horizontal row can only be installed with straight toilet, and the floor row can choose straight row or siphon type, depending on the pipeline structure. The horizontal row spacing is generally 180mm, while the ground row spacing is a little more complicated, with 200mm, 305mm, 400mm and 580mm. The measurement is very simple. The distance from the middle of the drainage pipe to the wall is the pit distance, and so is the horizontal measurement method.
Trick 3: There are four kinds of siphons. Let's talk about the classification of siphon first. Siphon is widely used in the market because of its better flushing effect, high water seal and good odor isolation effect. There are four types of rainbow pulses, as shown in Figure 5. This is the most basic siphon, and all other siphons have evolved from this form. This kind of siphon has no injection-assisted punching, and the siphon water level is a little higher than that of the injection siphon, which can only happen when it exceeds the blue line in the figure, and the flushing amount is also a little more than that of the injection siphon.
Final recommendation: If it is a new house, choose jet siphon and Wrigley with higher cost performance.