Review of popular filters for softening water

Each specialized manufacturer praises its products, spends a lot of money on advertising campaigns, and uses special marketing campaigns to attract new customers. In such conditions, it is difficult for an ordinary consumer to find a really best filter for softening water in a private house or apartment. A thorough study of technologies and thematic market offerings will help you make the right choice.

Why are hardness salts so dangerous for apartment owners and private houses?
At first glance, a filter for softening water in an apartment is not needed. The supplying organization is obliged to comply with the current sanitary standards, which implies a sufficiently high level of cleaning. However, the area of ​​responsibility of such services extends only to the backbone networks. Rust and other impurities formed in local and general building utilities will have to be removed on our own.

According to the SanPiN standards, a hardness level of up to 7 mg-eq / l is allowed. With such a concentration of calcium and magnesium salts, scale on the walls of the dishes appears after a single boiling of a portion of water. A similar process occurs unnoticed by the user on the heating element of the dishwasher and washing machine.

If you do not put a filter to soften the water in an apartment or in a country house, expensive household appliances can be damaged in a few months of operation.

The porous layer not only disrupts heat transfer and provokes the destruction of heating devices. Corresponding impurities reduce the process flow, completely block the flow in pipes, and damage the valves. Calcium plaque is removed from surfaces with an acid solution, which spoils decorative coatings.

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Scale is the result of crystallization of hardness salts

In a private house, when connected to an individual source, the owner independently solves all water treatment issues. The filter for softening tap water from a well is more demanding. The liquid extracted from great depths is saturated with calcium and magnesium salts. The hardness level in such sources exceeds 15 meq / l. You also need to take into account the increased expense due to watering plants and additional business operations in a large property.

Types of main (flow) filters for softening water
According to the traditional scheme, calcium and magnesium compounds are replaced with harmless sodium salts using a special cation-exchange resin. The contaminated liquid is passed through the filter material in the tank. A supply of regeneration solution is created and stored in a separate container, which is used for regular washing of the working layer.

This ion exchange technology has the following disadvantages:

· High-quality equipment with high performance is expensive;

The study of alternative methods of protection against scale will help solve the problem without unnecessary difficulties and high costs.

A magnetic filter for softening water is used at a hardness level of up to 6 mg-eq / l. The corresponding systems operate at a short distance, so they are installed in the supply line next to the protected equipment. The variable nature of the effect of the force field on harmful impurities is provided only when the fluid flow moves through the working area. Manufacturers produce models with flanged and threaded connections of standard sizes – 1/2, 3/4 inches, etc.

The electromagnetic filter creates the required impact even without moving the water. The alternating field is formed by an induction coil connected to the generator. The effectiveness of the descaling depends on the amplitude and frequency of the signal.

A powerful device of this category with a consumption of 20 W of electricity per hour prevents the formation of calcium deposits at a distance of up to 2000 meters from the coil winding place. By expanding the frequency range (1-50 kHz), this technique ensures the conversion of calcium salts at a level of inlet hardness up to 21 mEq / L.

Electromagnetic filter AquaShield

The electromagnetic converter is installed independently without disassembling the pipeline. The device operates in automatic mode, maintaining the parameters of the generated signal set by the manufacturer. Models created using reliable components remain functional after 20 years of continuous operation. No special maintenance required. The minimum power consumption allows the equipment to be used continuously without large associated costs.

For a washing machine, a heating circuit of a gas or other boiler, you can create a protection against scale using this technology. Polyphosphate filters for softening water are effective at hardness up to 6 mEq / l and liquid temperatures up to + 40 ° C.

Geyser polyphosphate filter

The main advantage of the technology is the low cost of the device and filter materials. However, the user needs to keep track of the amount of downloads himself. It is enough to perform one wash cycle without polyphosphate treatment so that a thin layer of scale forms on the surface of the heating element.

Main technical filter New water B 130 660 *
It should be excluded from the ingress of the filler into food. Polyphosphates can cause an allergic reaction upon contact with mucous membranes and skin. These features limit the scope of this protection method.

Hollow fiber
The filtering capacity of these devices depends on the size of the holes in the fiber walls. The best models retain the smallest impurities – from 0.01 microns. Such products can be used for the preparation of drinking water, as a profitable replacement for the reverse osmosis system. Hollow fiber filters are distinguished by high productivity (from 1000 l / h), long resource (up to 500 000 l). The accumulated impurities are removed by periodic washing without the addition of special reagents.

Hollow fiber membrane filter Aquarium

Filter brands
Large manufacturers produce mass-market products that are based on standard engineering solutions. To improve economic performance, companies produce sophisticated expensive equipment with replaceable units and loads. The user is forced to contact the branded service center for installation, repair, adjustment. During operation, additional costs are implied for the purchase of cartridges and consumables. The noted trends can be seen on examples of individual models from the assortment of profile brands.

This manufacturer uses hollow fiber membranes with a filtration capacity of 0.1 microns for the production of the Crystal line.

To increase efficiency, the membrane is placed in one module with a carbon block, which retains impurities with a size of 1 micron or more. When considering this technology, attention should be paid to the benefits of alternative solutions.

The following list contains the parameters of the Aquaphor Favorit Eco serial model (Aquarium 1000 hollow fiber main filter in the basic configuration):

Filtration fineness – 0.1 (0.01) microns;

· Resource of the replaceable unit – 7000 (500000) l;

· Productivity – 150 (1000) l / hour;

· Overall dimensions (Height x Diameter) – 206 x 184 (385 x185) mm.

Replaceable module Aquaphor costs 3,700 rubles. Taking into account the limited resource for a comparable period of operation, it will be necessary to install new membranes 71 times, which will increase the total costs by 262,700 rubles in comparison with more durable equipment of the Avaris brand.

In the company store of this brand, you can inexpensively buy a filter for softening water using polyphosphates. To reproduce the ion exchange technology, the manufacturer offers specialized cartridges and stationary sets of equipment from several functional blocks of the Aquashef series. There are no electromagnetic converters in the Geyser product list.