Purchasing skills of pure water machine.

 

It is very important to know the water yield of pure water machine first when purchasing pure water machine. Generally, people who sell pure water machine seldom tell customers the water yield and its meaning clearly, most of which are just how many gallons. In fact, the water yield of the pure water machine does not refer to the tap flow, because the flow with the tap is the water stored in the pressure bucket and then flows out through the tap, so that flow is not the actual water production capacity of the pure water machine. The actual water production capacity of pure water machine refers to the water production capacity of RO membrane (usually in GPD, i.e. gallon per day). If you want to see the flow of pure water machine intuitively, you need to close the switch of pressure barrel, and then turn on the tap to see the real flow of pure water machine, which is rarely explained by the sales personnel of pure water machine. After buying the water purifier, customers find that the water is not enough, so it is important to choose a water purifier suitable for their domestic flow.

 

The water yield of the water purifier is expressed in gallons (GPD). For example, for 80g water purifier, it means that the water yield of the water purifier is 80 gallons per day, which is equivalent to 12 liters per hour (about 3.75 liters per gallon). The pure water machine with 12 liters of water per hour, the drinking water and cooking water for a family of 3-6 people are sufficient.

 

Therefore, we must understand the water making capacity of the water purifier when purchasing it. First, we should choose the one suitable for our household use. Second, the size of the water making capacity also reflects the comparison of the price of the water purifier.

 

2. Choose pure water machine with pump or without pump

 

There is a lot of publicity about the water purifier without pump. First, understand the water purifier with pump. The pump of the pure water machine has the function of boosting pressure. Because the RO membrane principle is reverse osmosis, the precision is 0.0001 μ m (one thousandth of a μ m), and the water pressure of such precision into the RO membrane can only reach about 0.4MPa, so the pure water machine has a pump. A kind of household ultra-low pressure membrane is used in the water purifier without pump, and the water inlet pressure is smaller, about 0.2MPa. Because of the different performance of the membrane, the purification effect is not as good as that of the water purifier with pump. Another point is that the domestic tap water pressure is not very stable, so not all users can use the pump less pure water machine at home.

 

Generally speaking, the domestic ones also choose the ones with pumps, which are easy to use and can be guaranteed to be used when the water pressure is low. The purification effect of the pure water machine with pumps is better than that of the pure water machine without pumps. This is determined by the performance of RO membrane.

 

3. Dynamic or manual flushing

 

The pure water machine has a flushing function, which is mainly used to clean the RO membrane. It is mainly used to remove the scale and microorganism on the surface after long-term use of the RO membrane, so as to clean and protect the surface of the RO membrane. This function in the home machine, cleaning does not need to be too frequent. In terms of practicability and environmental protection, it is recommended to use the pure water machine controlled by manual cleaning, because the automatic control pure water machine uses the start-up automatic cleaning, most of the pure water machines are basically made of 10 liters of water to wash once, and some of them wash once when they stop and start again, the time is 10-60 seconds, during which a lot of water will be wasted, and the RO membrane cleaning time of the household machine can be controlled within 3-7 days once, once The time is about 30-40 seconds. In case of special water quality, it can be cleaned once every two days. And the function of manual cleaning is also very convenient. It's just a switch. Just turn it on. Although a little trouble, but can save a lot of water resources.

 

4. Scientific selection of water purification equipment

 

4.1 water purification technology: most of the existing water purification technologies are the products of science and technology in the last century, which can no longer meet the drinking water problems caused by the changes of living environment. Advanced water purification technology should pay more attention to the health, nutrition and activity of water while meeting the requirements of cleanness and safety.

 

4.2 use cost: when selecting water purification equipment, we should not only focus on the price, but also the use cost. Many traditional water purification technologies consume electricity and water, which unconsciously increases the user's expenditure in the process of using. Water purification equipment with excellent cost performance should be a more environmentally friendly product with low or even no power consumption and no waste water.

 

4.3 life and price of consumables: that is, the cost of consumables from the average to one ton of water. Many traditional equipments have short service life and frequent replacement of filter elements, which increases the cost of later use of users and brings trouble and failure risk. It is more likely to bring health risk of failure of purification equipment caused by failure to replace filter elements in time. The use of revolutionary new technology makes the service life of filter element longer, and reduces the user's use cost.

 

4.4 service assurance: water equipment is different from ordinary household appliances, and the normal operation of equipment is related to the health of users. Standardized service quality of aquatic equipment products is an important reference index when we choose products. Professional and responsible enterprises should provide full service for aquatic products, from installation and maintenance to periodic inspection of equipment, free pre-sale measurement, etc., so that users' water health and safety can be absolutely guaranteed.

 

common sense

 

Is drinking pure water harmful to your health?

 

Experts also remind the public to pay attention to the purchase of bottled water with food hygiene license when using the water dispenser. It is better for a family of three to buy a small bucket and try to drink it in a short time. The water dispenser should be cleaned and disinfected regularly instead of the "heating key" on 24 hours. The repeatedly boiled water is not conducive to health. It's best to drink straight running water.

 

However, the biggest disadvantage of purified water is the removal of calcium, magnesium, fluorine and iodine