When using a water purifier to filter water, we may encounter many unpredictable phenomena, such as poor filtration effect, reduced water output, no water output, and abnormal color and odor in the filtered water. These are all caused by problems with the water purifier accessories or raw water. By finding the root cause of the problem, we can find a solution.

For example, some people say that water filtered by PP filter has small bubbles, which is a common phenomenon.

The water purification principle of PP cotton filter is physical filtration, using food grade polypropylene material, which is compressed and fused by production equipment to form a cylindrical body. The filter element is equipped with three-layer filtration technology, which can effectively prevent the erosion of larger pollutants such as sediment, rust, suspended solids, etc. in the water source.

There are two reasons why there are small bubbles in the water source. One is that during the process of water circulation, when it comes into contact with air, it forms oxygen needle like pores. At this time, pores smaller than the density of water molecules will float up and become visible small bubbles to the naked eye. Essentially, it is still water, but it contains some trace gases and has no harm. Another type is caused by the qualitative changes of other external substances, such as medical drugs, domestic pollution, industrial pollution, etc. These substances fuse with water for a long time, and the substances containing chemical reactions inside undergo qualitative changes. Substances with a density lower than water will float up and form bubbles. The harm of these bubbles is very serious and needs to be prevented in a timely manner. They cannot be used.

The residual bubbles in the PP cotton filter when filtering water are mainly formed by the first type of water circulation and external air compression, and are not harmful in themselves, so they can be ignored. If you want to improve, you can put water in a container for sedimentation, and after a few minutes, the bubbles will disappear.