Water Efficiency Explained: Comparing Grade 1 and Grade 2 Toilets

When purchasing a toilet, you may notice the water efficiency ratings marked on it, but you might not fully understand these ratings. Here, we will explain the differences between toilets with first-level and second-level water efficiency.

Differences Between First-Level and Second-Level Water Efficiency Toilets：

1、The flushing volume of a first-level water efficiency toilet is 4 liters, whereas a second-level water efficiency toilet has a flushing volume of 5 liters, indicating a difference in water consumption.

2、There is a price difference, with first-level water efficiency toilets generally being more expensive than their second-level counterparts.

3、First-level water efficiency toilets have better flushing power, while second-level water efficiency toilets tend to have weaker flushing power.

How to Identify Quality Toilets：

1、Check the Weight

You can assess the quality of a toilet by its weight. A good-quality toilet typically weighs around 50 kilograms. The heavier it is, the denser it is likely to be, indicating better quality.

2、Check the Number of Water Outlets

Look at the number of water outlets on the toilet, which generally include both downward and horizontal drainage. Measure the distance from the wastewater outlet to the wall behind the tank to choose the right model; otherwise, it may result in installation issues.

3、Examine the Glaze

A high-quality toilet will have a smooth, bubble-free glaze with rich color. Additionally, you can feel the inside of the toilet's drainage; if it feels rough, it may trap dirt and grime, indicating poor quality.

4、Check the Diameter

Look at the diameter of the toilet's drainage outlet. Toilets with a larger drainage outlet tend to perform better, as they are less likely to get dirty and have quicker drainage, thus preventing blockages.

5、Inspect the Tank

Check for leaks in the tank. You can do this by adding a few drops of colored ink to the tank water and mixing it well. Observe whether any colored water leaks out of the tank; if so, this indicates a leak and potential quality issues.

In summary：this overview of the differences between first-level and second-level water efficiency toilets is intended to help you make an informed choice. If you wish to learn more about related topics, feel free to check out additional resources.