Whole house water filter system is a kind of tap water filter system for domestic use, which is a programme existed for high-quality water demand. Usually composed with pre-filter, central water purifier, central water softener and the end direct drinking machine.

The function of whole house water filter system and ordinary water filter are both water filtration, what's the differences between them?

Just like the distinguish between central air-conditioner and ordinary air-conditioner, central air-conditional provides refrigeration and heating for whole house, while ordinary air-conditioner could only use in a single room. And ordinary water filter could only filter the tap water of kitchen, meeting the drinking water demand in daily life; The whole house water filter system could filter the water in kitchen, bathroom, balcony, living room and so on, meeting the all around demands of domestic drinking, eating, washing and bathing.

First of all, after 15 years of research on water, Dr. Martin fox, a famous American water expert and nutritionist, pointed out in his book in 2000: "the volatile chemicals (such as residual chlorine) borne by the whole body can be roughly divided into: 1 / 3 oral intake, 2 / 3 through the skin and respiratory tract intake when washing or bathing." It's worthwhile to note that 2 / 3 is ingested through the skin and respiratory tract when washing or bathing. The various ways of intake of harmful substances determined that it is not enough to only pay attention to the purification of drinking water.

Water output: many people who have water filter know that the water output of water filter is very small, and people are often in a hurry when they are in urgent need of water. However, the whole house water filter has a feature that other water filter products can not achieve, that is, the water output is very large, which can supply all the places that the family needs to use water at the same time. If the water demand is not large, installation is not recommended.

Safety of water use equipment: if the tap water is transported through a long journey, plus the secondary pollution of the water pipeline and water reservoir during the transportation process, if it is not filtered by the whole house water filter system, the washing machine, shower nozzle, toilet water tank, faucet, etc, are easy to be blocked by scale, sediment, etc. It is recommended to install the water equipment for normal use.

The whole house water filter system adopts cascade purification. First, the tap water entering the house shall be purified. On this basis, a set of drinking water purification system shall be further installed at a certain outlet (usually in the kitchen) of the family, in combination with a special raw water tap, so as to realize the purpose of drinking fresh raw water.
(Source: http://www.uswaterfilterstore.com/domestic-water-filtration-system/introduction-of-water-purification/whole-house-water-filter-system.html)