How to choose a coarse filter: types, description and installation

The coarse filter is designed for the primary screening of large particles of debris from water and is a mandatory component of the water supply system. We'll figure out what types of coarse filters there are, where and how they are installed, and how to make the right choice, depending on the water supply system and the purity of the water.

If the filter is clogged, it needs to be dismantled and cleaned Source sdelaysam-svoimirukami.ru

General information

Filter systems are designed to retain small particles, thereby ensuring the primary purification of the incoming liquid from the water intake source. A coarse water filter for wells in autonomous water supply lines retains clay, grains of sand, and silt. With a central water supply, this kind of contamination does not penetrate into it, but in the process of transporting liquid through old water pipes, rust particles get into it. Moreover, the chemical composition does not change.

It is possible to maintain the normal operation of the filter only if it is periodically cleaned or new mesh equipment is installed. Cleaning devices without self-cleaning involves dismantling the mesh and washing it. Before unscrewing the mud trap, you need to close the access of water to the filter device.

When the mesh is cleaned, ensuring that there is no deformation on it, the device is assembled in the reverse order. Moreover, you need to pay attention to the condition of the silicone seals; if there are leaks in the connection area, they simply change.

Mesh filter devices have a simple design Source teplocity.com

Attention! Cartridge designs do not require cleaning; if they become clogged with dirt, the cartridge is simply replaced.

A coarse water filter is placed in front of the meter, washing machine and dishwasher; this helps reduce the likelihood of equipment failure due to incoming low-quality liquid and thereby extends the operating time of the devices.

So, among the main functions of filtering equipment it should be noted:

• protection of the pipeline from abrasive damage;
• retention of dirt particles dangerous to people;
• getting rid of unpleasant tastes and odors due to contaminated particles in water;
• protection of equipment from premature wear;
• prevention of pipeline clogging.

This equipment has different levels of cleaning, sizes, designs, but operates on the same principle - it allows water to pass through, creating a barrier to the passage of polluting particles.

A mud trap must be placed in front of the water meter Source moikolodets.ru

Replacing the cartridge

After successful installation, you need to immediately mark when you started using the cartridge. It has a certain service life, after which the internal part of the system must be replaced. The service life of cleaning elements varies from 1 to 6 months.

Once this time is up, you should start replacing the internal part of the filter. To do this, carefully unscrew the bottom lid of the flask and drain the water from it. It is best to do this in a bucket or other large container, since the rag simply may not absorb as much liquid.

The most convenient way to unscrew the flask is with the special key that comes with the kit. Therefore, it is important not to lose it. If you use other tools, there is a chance of damaging the filter housing. Having unscrewed the cover along the thread, we simply take out the used cartridge and put a new one in its place.

It is advisable to thoroughly rinse the inside of the flask before installing a new part, as there will be a lot of deposits on it. After this, use the special key from the kit to put the cover in place and tighten it tightly. Be sure to check the line for leaks.

Most often, the signal to replace the cartridge is low water pressure. As soon as this problem appears, you should immediately update the system.

Varieties

Taking into account the design features, the water filter for water supply has several main types:

• reticulate;
• disk;
• cartridge;
• pressure

Reticulate

The cheapest, but at the same time quite effective devices. Places of use - a filter in front of the water meter with a central supply of hot and cold water in apartments, areas before the heating unit in houses. In addition, this includes nets that are attached to the crane itself.

They have different cross-sections of holes, it is in the range of 25-500 micromicrons. The ability to clean is explained by the small diameter of the mesh cells. In addition, there are manually cleaned devices and analogues that have a self-cleaning function, as well as a system for removing dirty water.

Mud collectors are:

1. Straight . They are installed on horizontal sections of the pipeline with the mudguard facing down.
2. Oblique . Can be mounted in horizontal or vertical position.

Depending on the installation method, devices are divided into flanged and coupling.

Advantages of the devices:

• durability;
• affordable price;
• can be placed on the hot water supply pipeline;
• ease of installation;
• reliability.

Understanding the design of a mesh mud pan will not be difficult. Source sdelaysam-svoimirukami.ru
See also: Catalog of companies that specialize in water supply, sewerage and related work

All this made it possible to use a coarse filter for water from a well, combine it with meters, and install it in front of any device that is connected to the water supply.

Attention! Mesh products can only trap large particles. Also, if we consider mud collectors without a self-cleaning function, they must be cleaned manually.

Disk

These devices contain plastic discs with grooves of a certain size. The principle of operation is based on the ability of products to compress, due to this a cylinder is formed with grooves that retain dirt, allowing purified water to pass through. Particles are retained with a size of 5-300 micromicrons.

For convenience, most manufacturing companies paint discs in various colors, taking into account the cross-section of the cells.

Due to their high resistance to high and low temperatures, good performance and reliability, filters are widely used in industry.

This is what a coarse disk mud collector looks like Source filtrvody.com

Cartridge

This is one of the elements of multi-stage cleaning; as a rule, it is installed autonomously or under the sink. Does not allow particles of 0.5-35 micromicrons to pass through.

Cartridge filters allow you to purify water from smaller particles (unlike mesh devices). The cleaning procedure in them is carried out in built-in and sequentially installed polypropylene cartridges.

When installing purifiers, it is necessary to adhere to a certain sequence (taking into account the type of suspensions that are in the water).

System advantage:

• good quality;
• quick multi-stage cleaning;
• unpleasant odors are removed;
• the liquid is disinfected;
• do not allow lead and chlorine to pass through.

The only downside is the need to periodically replace cartridges.

It is often advisable to install several devices for better water purification Source diz-kitchen.ru

Pressure

They are equipped with a pressure controller, since water enters this equipment and is cleaned under pressure. This is the reason for their large size, but it is these mud collectors that retain particles of different fractions, which creates the highest degree of purification.

Taking into account the pipe cross-section and power, industrial and household coarse filters are distinguished, but their operating principle is the same. The only differences are in size. The cross-sections of the internal cells may also be different, and the quality of cleansing depends on this.

Pressure filters are used not only for home use, but also for water purification in artificial reservoirs Source static-ru.insales.ru

conclusions

When deciding to purchase a mainline water filter, it is important to remember the following:

• First of all, you need to decide on the purpose of the device. Models are available for iron removal, free chlorine removal, mechanical filtration and softening;
• attention should be paid to such parameters as the number of cleaning stages, maximum performance and resource of the filter cartridge;
• Information about the method of purifying the liquid, the presence of a storage tank , as well as the materials used will not be superfluous.

Criterias of choice

A coarse water filter is selected taking into account the power and size of passing particles. The power of the device is calculated based on the volume of water passed through. Moreover, it should not cause a decrease in liquid pressure in the pipeline.

When installing low-performance devices, an additional storage tank is installed; clean water flows into it when the tap is closed. When it opens, the water in the tank flows out.

The cross-section of the mesh cells must be selected taking into account the quality of the supplied liquid, the type and size of the retained particles. If the cross-section of the mesh is larger than the directly passing contaminants, the filter system is of no use.

When choosing fine-fraction devices for cleaning heavily dirty liquid with large particles, the filter will need to be cleaned more often and consumable parts replaced. Active operation under these conditions increases the likelihood of rapid device failure.

Water analysis will greatly simplify the selection of a suitable device Source lab.darvodgeo.ru

A preliminary water analysis in the laboratory will allow you to choose the right equipment. Taking into account the received assessment, experts will recommend the required type of filter. Sometimes it is advisable to install several mesh devices in series. The first one has a large cross-section of cells, and the second one has a smaller cross-section. This will help reduce the frequency of cleaning and increase the operating time of the equipment.

A useful additional device would be a reducer that reduces the fluid pressure at the inlet to the filter and compensates for hydraulic shocks in the system, this allows for better cleaning and extends the service life of the equipment.

Due to their design, straight cleaning devices have better efficiency than oblique ones. The latter are chosen only if it is impossible to install a direct filter (most often this happens due to lack of space when the pipes are close to the wall).

When choosing a coarse water filter, you need to take into account the materials used, which must be durable and environmentally friendly. All connections must be firmly attached, silicone gaskets must adhere to the surfaces as much as possible.

If you don’t know which filter to choose, consult a specialist Source ytimg.com

You need to understand how much certain functions are required, since their presence leads to an increase in the cost of equipment. For example, devices that soften water with a large amount of metals are quite popular. But they are completely useless if these suspensions do not exist. In addition, there may be many particles of manganese and calcium in the water that need to be reduced. The described filter will not cope with this either.

Therefore, it is imperative to first test the water in the laboratory. Only taking into account the obtained result, the appropriate equipment is selected.

Principles of operation of the main filter

A filter installed at the entrance of the water main to the apartment allows you to obtain purified liquid at all water intake points - for example, in the bathroom, kitchen, etc. In general, any filter is a single or multi-stage system, which, depending on the configuration, removes certain particles that pollute water. The best filter systems have multiple cartridges and allow you to drink water straight from the tap.

Each filter has a special throughput, which varies from 10 to 50 l/min on average. Also, when choosing a device, it is important to take into account the level of pressure that it can withstand: low or high.

The filter element itself is installed in a special housing, which can be made of plastic or metal. Inside the cartridge is a sorbent that collects harmful impurities. For example, it could be a carbon filter.

Main filter device

Installation Features

To begin installing a water supply filter, you need to clean the surface of the pipeline and determine its tightness. To reduce the load on communications after installation of the equipment, it is additionally secured to the wall with a clamp.

If you install a filter for a water meter that has a seal, the filter device located in front of it must also be sealed. In this case, it is best to choose filters where there are eyes in the plug for threading the seal.

Both the meter and the filter need to be sealed Source klimatlab.com

During installation, it is imperative to seal the connections to avoid leaks.

Advantages of main filters

Why are mainline filters so good?

• They perfectly purify liquid, improving its organoleptic parameters. Despite their apparent simplicity, they are very effective.
• Easy to use - the main thing is to choose and install the device correctly. Then you just need to occasionally clean the filter meshes or change the cartridges and that’s it.
• Easy to maintain. In some cases, you don’t even need the help of a specialist to place and connect such a filter, if you have already taken care of installing a ball valve in front of the filter, just in case. This will then make it easy to maintain the filter device.
• They have high productivity - such a filter will allow you to get a lot of clean water without interruption. Just remember filter jugs, which provide only a few liters of clean water per day.

Properly installed main filters
There are also disadvantages. This requires inserting the filter directly into the main line, and also requires installation of a ball valve. Here you can’t do without the help of specialists. Fortunately, these are one-time jobs that will not require large expenses.

Briefly about the main thing

The choice of a specific filter will depend on the purposes for which its installation is pursued. Most likely, there is no need to make the water completely drinkable. This is quite expensive and irrational.

Water used for the heating system and similar tasks should only be purified with a coarse filter. At the same time, for the kitchen it is worth choosing a multi-stage model, with which you can get high-quality drinking water.

Today there is a huge range of these devices on the market, so everyone can easily choose the optimal device for specific tasks. You need to install the filter in front of the meter; you need to invite a specialist for installation. After installing this device, you need to periodically clean it and, if necessary, replace it with a new one.

User voting

Which main filter would you choose or recommend?

Aquaphor Viking Midi

25.00 % ( 26 )

Aquaphor Viking Mini

6.73 % ( 7 )

New Water A082

5.77 % ( 6 )

Geyser 4H

5.77 % ( 6 )

Geyser Typhoon 10 SL 1/2

12.50 % ( 13 )

Raifil PS891O1-O-PR-BN 1/2

6.73 % ( 7 )

Aquaphor Gross 10

6.73 % ( 7 )

Barrier VM ½

2.88 % ( 3 )

Aquaphor Gross 20

8.65 % ( 9 )

Geyser Jumbo 10

3.85 % ( 4 )

Geyser 1P transparent ½

9.62 % ( 10 )

How to properly install water flow filters for rough cleaning on cold water

You must strictly follow the instructions:

1. Connection occurs using a threaded or bolted connection. To do this, select nuts and adapters of the required sizes.
2. The direction of flow is taken into account by the arrow drawn on the equipment.
3. The place where contaminants accumulate is directed downwards.
4. Some products have an additional function - backwashing.

The process of starting the coarse filter is identical to installing the main system. An important condition for correct operation is frequent washing of the mesh and cartridge from suspended particles. After repeated manipulations, it is recommended to replace old blocks with new ones.

Case types

There are 2 types of cases: BB (Big Blue) and SL (Slim Line). The first type is large. Its body is usually blue. The height of such a filter is 10 inches (about 25 cm), and the diameter is 18.5 cm. This type of device is used to capture particles of chlorine, iron, and organic substances. They are also equipped with water softeners.

Slim Line has more compact dimensions. The diameter of such filters is 13–14 cm. And their height is smaller. Such devices can be used in cases where space does not allow the use of a larger filter. They use color gradation: if the filter housing is transparent or blue, then this device is intended for cold water. The hot flask will be colored red, orange or brown.

Tools and accessories

1.5 m3/h For process water

1.5 m3/h For process water

MBFT-75 Membrane for 75GPD

To install and install the water filter you will need:

• special electric pipe cutter. You can use a regular hand saw or a mechanical metal cutting device;
• drill;
• drills of various diameters;
• sealant, tow or fum tape;
• adjustable and pipe wrenches;
• screwdriver for cross-shaped screws;
• sharp knife.

The remaining components will be in the box with the product:

1. a steel gib through which the purified liquid will be supplied;
2. from 2 to 6 cartridges (the number depends on the model), each of which will be sealed in an individual glass or plastic flask;
3. two flexible metal or polypropylene hoses for receiving and dispensing;
4. metal unscrewing wrench for changing filter blocks;
5. holder for fixing to the wall;
6. adapter;
7. connecting gaskets.

If you have a low pressure in a residential building and the pressure in the pipeline is not high enough, then you can buy a storage tank. It will correct the situation, and the liquid will be supplied evenly without jumps.

Recommendations

For both cold and hot mains, it is best to make a “bypass path” . This is necessary so that if the filter becomes too dirty and a leak appears, you can let water in directly, bypassing the filter. It looks like this:

In practice, it looks like this:

It is necessary to install such a bypass before all filter elements, before the mud trap, but after the meter.

How to properly install a water filter on cold water in an apartment or private house with your own hands

Professionals recommend performing the following operations in turn:

• Do not remove the standard tap; it is useful for cleaning the room and washing dishes. To release drinking liquid, install the second jib, included in the kit, on the opposite side of the sink. Cut a circle of the appropriate diameter in stainless steel and secure the tap with iron nuts, plastic disks and fumig tape.
• Turn off the valve to the general water supply and wait until the residue drains out. Next, using an adapter in accordance with the schematic diagram indicated in the instructions, make a branch.
• Release the metal-propylene hoses for input and output from the closing devices. A hose is placed on the valve inserted into the pipe, through which filtered moisture will flow. To do this, the part must be rested against the wall and pressed on it so that the gap between the boundaries of the valve and the pipe is minimal.
• The drainage outlet must be connected to the sewer, having previously made a passage of the required parameter in it.
• Before starting operation, all connecting points should be checked for sealing.