What you need to know about water purifiers？

What you need to know about water purifiers

We all know that tap water is not to be consumed directly. Because tap water is dirty.
1, the water from the water plant through the pipeline to your home on the way may be subject to pipeline rust brought about by secondary pollution.
2, delivered to your home in the tap water will leave the residual disinfection of chemicals.
3, community cisterns and water tanks are not effectively managed and cleaned, will precipitate a large number of harmful substances. Even if the tap water is boiled, there are some harmful substances, such as some chemicals such as chlorine and heat-resistant bacteria still can not be removed. With the gradual popularization of water purification knowledge, more families have begun to choose to install water purifiers to filter water, to build a protective wall for their health.

But the water purifier on the market is a variety of varieties, original imported, imported, domestic, labeled, etc., the quality is mixed. How to see the real functional characteristics of the product, from a dazzling pile of water purifiers to choose a price and quality more in line with one? First of all in the purchase of water purifiers, you need to know the special features of water purifiers, it is not like TV and air conditioning and other appliances, randomly installed in anyone's home features are the same, just different price points. But the water purifier is a different kind of water purifier, to solve different problems.
Each region's water quality is different, the need for different types of water purifiers, each family's needs are different, of course, the purchase is different, can not be generalized. So the question is, how in the end to choose? What exactly can different water purification devices filter? The common water filtration methods on the market are microfiltration, ultrafiltration, nanofiltration and RO reverse osmosis filtration. Tap water may contain sediment, rust, residual chlorine, odor, volatile organic compounds, macromolecules, colloids, bacteria, heavy metals and so on.
If we imagine the different impurities in the water as different sizes of fish, different filtration methods is the hole size of the fishing net, according to the size of the pore to express the following:
Microfiltration Filtration precision 0.1-1 micron Filtration of sediment, rust, particles, colloids 
Ultrafiltration Filtration precision 0.01-0.1 micron Remove bacteria, parasites
Nanofiltration Filtration precision 0.001 micron-0.01 micron Remove organic matter and pigment in surface water.
RO reverse osmosis filtration Filtration precision 0.0001-0.001 micron Intercept heavy metal ions, organic and inorganic substances

What problems do the different devices solve?
1, the main purpose of the pre-filter: the first gatekeeper of household water purification, to keep the pollution outside the door. Generally installed at the forefront of the water pipeline, filtering sediment, rust and large particles in the water, to prevent a large number of precipitated impurities on the human body caused by the harm, water-related home appliances and water purification equipment to play a pre-protection role.
Advantages: no need for specialized after-sales service, no need to replace the cartridge, filtering effect is intuitive and transparent, long service life (up to several decades).
2, the main purpose of the central water purifier: tap water after the pre-filter, into the central water purifier, the central water purifier activated carbon adsorption function can effectively adsorb residual chlorine in the water, organic matter, color and odor and heavy metals.
Advantages: to solve the whole house overall water purification problems, filtered water clarity, but also to stop bacteria from invading the human body.
3, the main purpose of the central water softener: water softener mainly through the ion exchange method, through the resin to remove calcium and magnesium ions in the water, reduce water hardness, to prevent scaling caused by clogging of pipes and equipment damage.
Advantages: Provide more comfortable living water, such as bathing, beauty, etc.; effectively save the amount of detergent, after washing clothes soft, bright color.
4, RO reverse osmosis water purifier main purpose: reverse osmosis water purifier generally have four or five levels of cartridge, through the comprehensive play the effective role of the cartridge, remove sediment, suspended solids, colloids, organic matter, heavy metals, soluble solids, bacteria and other harmful substances in the raw water, retain water molecules and dissolved oxygen.
Advantages: through the reverse osmosis technology to make pure water sweet and tasty, can be directly consumed or a large number of use of soup cooking, solve the water quality of the secondary pollution, is the most secure, the most economical, the most convenient way of drinking water.

My family how to choose?
Direct drinking water: the need for the most thorough filtration
Kitchen water: general filtration, no need to consider the issue of hard and soft water
Shower and laundry water: need soft water
You can choose which water purification equipment to install in your home according to your needs, in general, water softeners are mainly for domestic water, such as laundry, bathing, etc., the family can choose to live in a higher sense of comfort requirements, if you need to direct drinking water in the family can choose to install a reverse osmosis RO water purifier.