1. Look at the shape.
First, look at the appearance of the product for geometry, deformation, and distortion, and check whether the color is uniform. Typically, high-quality products are clearly marked with the logo, specification and date of manufacture. When you buy, you have to check if there is a certificate of conformity and a sanitation permit, etc. Without a sanitary permit, it cannot be used as a drinking water pipe.
2. Smell.
Smell the product. If there is a strong smell, it may be an inferior product made by the manufacturer for profiteering. This type of water pipe is usually poisonous and can endanger human health, so buy it carefully. A good quality hose has no particular odor and feels smooth and smooth to the touch.
3. Pipeline purchasing channels.
When purchasing products, you should choose regular merchants or large building materials markets, so that the quality will be guaranteed and the after-sales service will be better. In addition, when buying the same product, you can compare different manufacturers and choose the one with good quality and low price. In addition, the after-sales service provided by the big brand merchants is also very perfect, which can avoid some unnecessary troubles.