Toilets with or without pure water bends

First of all, it is necessary to determine one point, that is, it is necessary to paint waterproof coating, and there is no need to paint pure cement slurry, especially the cement slurry mixed with glue, the surface seems to increase the degree of adhesion, but in fact, the glue molecules are more likely to have water absorption, which is not conducive to waterproofing. Therefore, as long as the wall and floor have been smoothed with cement mortar, you can directly apply the waterproof paint after cleaning, and you do not need to apply the pure cement slurry before applying the waterproof coating.

Generally speaking, the toilet drainage pipe should not be able to add 45 reverse bends.

Don't install a bend under the flush toilet, it will be blocked often. Showers, floor drains, and washbasins should be equipped with anti-bends.

The S bend and P bend of the toilet are water sealed, which can play a role in preventing the odor or harmful gases in the pipe from entering the pipe. But in the use of a little different first to talk about the P-bend, it is installed far away from the main pipe, that is, the mother pipe and is connected to the mother pipe horizontally, most of them are used for the installation of squatting toilets without a backbend. In addition, the S bend is mainly installed close to the mother pipe, and the connection with the mother pipe is up and down, that is, vertical, most of the drainage pipes used for wash basins are installed, I hope it can help you, and a sketch is attached for you to take a look.

It won't be pure cement, what you are talking about should be that the master used plain ash on the floor tiles after leveling them with sand cement on the ground, which is the pure cement you said.