Straight flushing or siphon toilet? This is one of the most common issues that troubles the house owners when they considering about decorating their homes. Actually, these two kinds of toilet have their own advantages, you should make a decision according to the needs. You will clearly know what your right choice is after reading this article.

The first thing you need to understand is that the taxonomy of this two kind of toilet is based on their drainage methods.

Straight flushing toilet basically uses the pressure of water streams to flush the filth. Its inner walls are usually steep to concentrate the water better, and the blow-off line are straight and thick, which is Easy to flush down the larger things. Blow down process of siphon toilet is basically depends on the suction power, which is produced by the water level difference between the two ends of S-shaped pipeline after be filled with water. This suction power will push filth into the sewer.

Different flushing methods bring different advantages and disadvantages to the two types of toilet. You can find out the most suitable product after considering those properties in combination with the specific situation of your family.

The main disadvantage of a straight flushing toilet is that it wastes a lot of water and makes loud noise. But its thick blow-off line will make sure it can hardly get clogged up. The toilet paper, leftover tea and other small residue can all be directly poured in to the toilet and washed away. The flushing way of siphon toilet can achieve bigger impact force with less water and low noise. But its thin pipe is relatively easy to jam. You need to put another trash can in the bathroom for toilet paper, which will take up a lot of place and may gather the bacteria.

You also need to consider about the shape and specifications of the downpipe in your house. Straight flushing toilet is suitable for the house with any shape of downpipe, but the siphon toilet is not. At present, the downpipe of newly-built houses in cities are mostly made of PVC .

These pipes generally have three types:
1.S-shaped pipe with deep backwater trap. Siphon toilet is not suitable for the houses with this kind of downpipe as it also has a S-shaped blow-off line. Double backwater trap will inhabit their drainage function and makes the toilet jam easily.

2.S-shaped pipe with shallow u-shaped backwater trap. The houses with u-shaped backwater trap can use siphon toilet and keep a great drainage at the same time. You can also us straight flushing toilet if you like.

3. Straight pipe with no backwater trap. In theory, houses with such sewers can use both straight flushing toilet and siphon toilet. But the siphon toilet is a common used one. On the one hand, straight sewer can give full play to its advantage and reduce the risk of jam. On the other hand, if you use straight flushing toilet in the house with straight pipes, there will be no backwater trap on the bottom of toilet to help you preventing the smelly odour. Even your bedroom would be stink.