Is the pre-filter useful?

 In recent years, with the improvement of people's quality of life, the concept of "whole house water purification system" has become very popular.

The whole house water purification system includes a variety of water purification equipment: pre-filter, central water purifier, water softener, and end water purifier. With it in the home, the tap water has to go through a variety of ways from the moment it enters the house. The filtration of water purification equipment can be used (drinked) by us at last, which guarantees the health and sanitation of our drinking water.

However, in the whole house water purification system, the pre-filter spin down sediment filter is the easiest to be despised. As the first line of defense, compared with other water purification equipment, it has the lowest price and the worst effect, so many people will think that the front The filter is the "IQ tax" thing, it is fooled if you buy it, so there is no need to install it.

Is the pre-filter useful? Is it an IQ tax? If not, what households need to install it? Today, the dean talked to you in detail about the pre-filter.

What is the pre-filter?

The pre-filter, as the name implies, is the front-mounted water purification equipment, installed at the entrance of the tap water (behind the water meter). To flow into the water pipes at home, tap water must first pass through a pre-filter, so the pre-filter is the first line of defense for the whole house filtration system.

Is the pre-filter an IQ tax? Is it useful? What is the use?

We know that tap water is not pure water, it often contains a lot of impurities, especially in areas with poor water quality, tap water contains more impurities. For example, common ones are: rust, silt, microorganisms, viruses, bacteria, metal ions, etc. Tap water with a lot of impurities is not suitable for use, let alone drinking directly.

Because of this, the purpose of all water purification equipment is to filter out impurities in the water and protect the health and sanitation of our drinking water. The same is true for the pre-sediment filter. As the first line of defense, it can reduce some diameter> Large particles of 40 microns are filtered out, such as rust, silt, plankton, hair, etc., so that the tap water becomes slightly cleaner and less impurities.

So, is the pre-filter useful? The answer is of course yes. In the whole house filtration system, the filtration level of the pre-filter belongs to "coarse filtration", and its function is mainly "basic filtration".

Of course, the tap water filtered by the pre-filter will be cleaner, but the impurities in the tap water are not completely filtered out, and the water is still not suitable for direct drinking and use.

Since the filter screen of the pre-filter has a large pore size and average filtration capacity, many people will have this doubt: the central water purifier and the end water purifier with a smaller pore size and better filtration capacity directly installed Okay? Why bother to install a pre-filter?

In fact, the reason is very simple: the biggest role of the pre-filter is not to "filter" and "drink", but to "protect".

The pre-filter filters out some large particles of impurities, which can reduce the large particles of impurities from entering the pipeline, water equipment (such as faucets, showers, water heaters, washing machines, toilets) and subsequent water purification equipment (central water purifiers) , Water softener, end water purifier).

If the large particles are not filtered out, it will enter the water equipment to form a large amount of scale, block the filter of the subsequent water purification equipment, and affect the use of the water equipment and water purification equipment (increased loss, reduced efficiency, and shortened service life).

What family needs to install a pre-filter?

Since the pre-filter is not an IQ tax, is it necessary to install the pre-filter?

I personally think that judging whether a home needs to install a pre-filter depends on two aspects: the water quality of the home; whether there are other water purification equipment in the home.

The water quality at home is relatively poor. For example, there are visible impurities in the tap water, peculiar smell (rust and bleach), and there is more scale in the electric kettle (more metal ions), so a pre-filter should be installed.

If you have other water purification equipment at home, for example, if you install an end water purifier or 5 stage reverse osmosis water filter, you should install a pre-filter. Because the pre-filter can filter out large particles of impurities in the first time, to avoid impurities affecting the filtering effect of the end water purifier, resulting in a decrease in the use effect of the end water purifier (clogging) and an increase in the use cost (frequent replacement of the filter element).

However, in fact, you don’t need to be too entangled in the question of whether to install the pre-filter. After all, the pre-filter is not expensive, the purchase cost and the use cost are very low, and the service life is long (basically can be used for a lifetime). Drinking water and water sanitation are also very cost-effective to spend a few hundred yuan more.