Water seal refers to the water stored in the toilet, which can block the return of odor. The amount of water stored determines the ability to block odor. State regulations: The height of the water seal of the toilet shall not be less than 50mm. The height of the water seal refers to the distance from the top of the sewage pipe to the water surface.
Recommendation: Water seals are for siphonic toilets, and flush toilets are not water sealed. The higher the water seal height, the better the deodorant effect, but as the water level gets higher and higher, the problem of splashing water is more likely to occur. Therefore, when purchasing a toilet, it is best to choose a product with a water seal height of 55mm-60mm.
The water-saving effect has gradually become one of the manufacturers' main selling points. Products with 4.8-liter, 4-liter, and 3-liter seats flushing water can be seen everywhere, and many consumers will even save money to buy water-saving toilets.
Recommendation: In fact, the national standard has regulations on water-saving toilets: if the large-scale flushing volume is less than or equal to 6 liters, it can be regarded as a water-saving toilet. In order to achieve the purpose of saving water, some manufacturers do not sacrifice the effect of sewage. When consumers use it, they must constantly flush the water to remove the stains. If the water-saving toilet fails to provide the certificate provided by the relevant state agency, it means that there is moisture in its water-saving effect, and everyone should be careful when choosing it. If there is no special demand, choose a product with a flush volume of less than 6 liters.