Tap water entering the dwellings goes through a multi-stage purification procedure and at the outlet meets all the requirements for it. But when transported through pipes over long distances, it again becomes contaminated. We are not talking about germs — freshly added chlorine kills most of them.
The liquid is polluted, first of all, by the products of oxidation of the walls of the waterways, detached pieces of lime scale, as well as soil particles, if repairs were carried out along the route of the water or the tightness was broken by damage.
Purpose and principle of operation
Coarse filters create a mechanical barrier in the way of components not provided for by the standards.
This simple feature improves water quality and serves to prevent damage to water folding units: faucet mixers, household appliances mechanisms (dishwashers and washing machines), facilitates further purification of drinking water.
All devices exclude the ingress of contaminants into the consumer watercourse. Differences in types provide choice to the buyer and greater compliance with volumes.
The most common and compact type of coarse cleaner, often referred to as a sump cleaner.
It consists of two nozzles — inlet and outlet — and a grid, in front of which there is a reservoir for collecting contaminants.
- In most cases, the tank is equipped with a removable cover for the possibility of removing deposits.. Before cleaning it, turn off the water supply, drain the dirt from the storage tank, and, if possible, remove and clean or replace the grid. A sump with a flushing system is the same strainer with a reservoir, during the installation of which a bypass system for supplying water in the opposite direction is provided. Then you do not need to remove the grid — just direct the flow in the other direction. It is very convenient if a drainage drain is created into the sewer system.
- According to the configuration, the mesh apparatus is straight and oblique — the name indicates the location of the sump. Installation of a direct filter is only possible on a horizontal pipe section and requires a little more space below. An oblique cleaner can also be installed vertically if the water is supplied from above.
- According to the method of attachment to the water supply system, the devices are flanged and coupling. The flange connection is used on large diameter pipes, for example when installing a pre-filter before entering the system of an apartment building. Coupling fasteners are used on pipes of smaller diameter, in particular for devices for individual use. Their installation is not difficult, it is carried out using a wrench and union couplings, usually included with the filter.
Cartridge or cartridge
Stationary filter type for indoor use. It is a volumetric flask, with a replaceable cartridge through which water passes. Eliminates both large and small impurities.
Often used as an individual device for water that has undergone general house cleaning. The replacement element is made of plastic (disposable) or corrosion-resistant metal (reusable).
The design is attached to the wall, access to the cartridge is carried out using the key included in the kit.
High-speed pressure system for coarse cleaning: it is an impressive flask filled with a cleaning compound, inside which water is filtered. Pollution from 30 microns is retained.
The system is equipped with a device that regulates the composition of water. This type of filter must be connected to the sewer — pollution is removed through the drainage drain. Thus, the whole structure is a self-cleaning device.
The kit includes pressure gauges at the inlet and outlet, it is possible to regulate the pressure inside the system. Operation is possible only in a room with a positive temperature. Due to the size and cost, it is advisable to use at the entrance to the house.
How to choose
When choosing a cleaning device, one should proceed from the purpose of each particular apparatus. The coarse filter for individual use has smaller volume indicators, and its installation and cleaning is easier. Devices for apartment buildings and industrial purposes are chosen by specialists.
When buying, you should check the device for visible damage and cracks — exclude factory and shipping defects.
Design flaws are a relative concept. Who is warned is armed. Therefore, in each case, before buying, you should read the instructions for using the model, make inquiries with the seller.
Disadvantages are revealed, unfortunately, only during operationbut this does not affect the quality of the filter, it only complicates maintenance and operation.
Before purchasing, you need to make sure that the configuration of the model fully complies with the declared list in the instruction manual. Warranties are required. When installing the filter yourself, do not use incomplete parts and tools if special fittings and keys are included in the purchase.
Installation and maintenance
Installation is not difficult. Initial installation involves cutting the pipe and threading, so it is better to entrust this procedure to a plumber or representatives of accounting organizations: usually, when installing a meter on water, specialists are required to install a coarse filter.
Further maintenance is carried out independently. You can unscrew the structure with a wrench, having previously turned off the water.
It is recommended to clean the device at least 4 times a year or more often if there are signs of contamination: deterioration of the organoleptic properties of water, decrease in jet pressure.
Experienced plumbers recommend checking the tightness of the connections every time to prevent leaks. It is best to seal the joint with linen tow.
Why is it necessary to install before the counter
A coarse filter must be installed in the pipe section in front of the water consumption meter. This will ensure the correct operation of the device, protect all devices using water from damage.. The use of the device will ensure long-term operation of household appliances.
Cost and popular models
There is a fairly large selection of coarse cleaning devices on the market. The most popular individual models are mesh simple straight and oblique filters with removable revision cover. Developers, homeowners associations and management companies use large stationary devices. The cost of the first ones is from 120 rubles, and the professional ones fit into the range from 2,000 to 300 dollars.
Most residents of new buildings are relieved of the need to install an in-house device: when putting the house into operation, the presence of a water meter and a filter in front of it is checked. When using plastic pipes inside the house, the water is not polluted.
And in houses put into operation many years ago, the use of this type of cleaning is highly recommended: with many years of use of metal pipes, corrosive contamination is inevitable. Many reviews say this.
Olga, 26 years old
I have a small child, and I am very attentive to the composition of his diet. Before the coarse filter was installed, I was hesitant to use tap water to prepare mixtures. Even after fine cleaning and boiling, there was plaque and sediment. And the drinking water filter clogged very quickly. When they put the meter on the water, they also installed a coarse cleaning device — a small detail on the pipe. The water has become much cleaner.
Anton, 38 years old
In a country house, I have water from a well. Worn for analysis in the laboratory. Allowed to eat, but only after boiling — there are particles of soil. There are a lot of appliances in the house, from the dishwasher to the hot tub, and I realized that their longevity depends on the incoming water. The pressure from the source is good, so I installed a high speed pressure filter. Drainage led to the sewer, now there are no problems with cleaning — the system does everything by itself. Very satisfied.
Thus, the coarse filter is the imperative of the times. To save equipment, plumbing, plumbing equipment, its installation is necessary. Affordable price and high efficiency made these devices in demand among consumers.