Double 11 is coming. If you want to buy a water purifier, professionals tell you that these pits must be avoided!

1、 Price of water purifier

The existing water purification equipment on the market is hundreds of dollars cheaper and tens of thousands more expensive. Even if they are 800g reverse osmosis water purifiers, some are more than 1000 and some need 5000 or 6000. The prices are very uneven. So which one to choose is not too pit.

In fact, it mainly depends on your own budget. As long as it is a qualified water purifier brand, the pricing is relatively reasonable. Regardless of the brand premium of big brands, under the same conditions, the expensive one may have better quality. The more expensive the water purifier is, the better, but you can't choose which one is cheaper. Although the core of the water purifier is a filter element, and the working principle is also simple, the quality of the material, filter element and filter material are equally divided into 369, which is too cheap, and the materials need to be paid attention to.

Ispring aishipulin reminds you: you can choose qualified water purifier brands according to your own budget, and you can't pursue low prices too much.

2、 Number of filter elements

The core of the water purifier is the filter element. There are many types of filter elements: softened resin filter element, PP cotton, activated carbon filter element, RO membrane, ultrafiltration membrane, mineral filter element, etc. In addition, the filter element is also divided into composite filter element and single filter element. Generally, the filtering effect of single combined filter element is indeed better, but the number of filter elements is not the better. The important thing is to see the quality of filter element. If the quantity is large, the later maintenance cost will also become higher.

Ispring aishipulin reminds you: if you buy a single graded filter element reverse osmosis water purifier, grade 5-7 is almost the same, which can be increased or decreased according to your own needs.

3、 Purified water flux of reverse osmosis water purifier

When it comes to reverse osmosis water purifier, many people pursue models with high flux. Flux generally refers to the daily water production of the water purifier, such as 75g, 400g, 800g, etc. the greater the flux, the more daily water production and the faster the water outlet speed. In fact, it is good to experience that the water outlet speed can reach more than 0.8l/min, and the machine with small flux will be equipped with a pressure water storage bucket, so the water outlet speed is also fast. Therefore, the water purification flux of the reverse osmosis device must not be large.

Ispring aishipulin reminds you: for a family of three to five, 400g water purifier is enough. The flux of household water purifier is too large, and the cost of core replacement in the later stage is high.

4、 Wastewater ratio of reverse osmosis water purifier

Many people pursue the wastewater ratio of reverse osmosis water purifier and think that the lower the wastewater ratio, the better. In fact, the state stipulates that the water efficiency above 60% is the first-class water efficiency, that is, the wastewater ratio of 1.5:1 (making 1.5 cups of pure water will produce 1 cup of wastewater) is very good.

Some friends are worried about waste and want a lower wastewater ratio. In fact, ultra-low wastewater ratio has a price. It will damage the RO membrane and may reduce its service life. Moreover, the generated wastewater can also be stored and used as clean water.

Ispring aishipulin reminds you that you don't need to pursue ultra-low wastewater ratio when purchasing reverse osmosis water purifier. About 1.5:1.

5、 Replacement frequency of filter element

Except for the stainless steel filter element of the pre filter, most filter elements need to be replaced directly, and the filter element is not recommended to be used after cleaning. The replacement frequency of the filter element is basically the same for the same filter element. Some brands will publicize that the filter element will not be replaced for three or five years. All those who talk about the replacement frequency of the filter element regardless of the water quality are playing hooligans. The filter element has a rated service life, but the specific replacement frequency depends on the local water quality and use frequency, etc.

Ispring aisipulin reminds you that the replacement of filter element is very important, and the replacement frequency is determined according to the quality of filter element, local water quality and use frequency.