Plastic rings for a well: types and features of the choice

Arrangement of a well of any type requires the creation of a solid and durable construction. For these purposes, specialized products can be used - well rings, which are made of various types of raw materials, including plastic products.

The positive trend, characterized by the expansion of the use of plastic for the production of structures and equipment, is due to a number of distinctive quality characteristics of the material.

Plastic rings for a well are widely demanded first of all at the expense of durability of raw materials, and also the minimum weight in comparison with the analogs made of concrete.

Therefore, plastic rings can be used to create wells.

Such structures are often installed in sewer as well as drinking wells. The material in contact with water does not affect its composition and taste.

Not long ago, wells were made only of reinforced concrete products, but the large weight and small height of the rings required additional sealing of the joints between the rings, because during operation the integrity of the structure is broken. This leads to the penetration of groundwater into the well, a decrease in water quality, and also the silting of wells.

With the introduction of PVC wells on the market, the occurrence of such problems has been completely eliminated. A feature of products can be considered their operational life, which is about 50 years.

Polyethylene and polypropylene, polyvinyl chloride and polymer sandstone compounds are used as raw materials for the manufacture of rings.They are characterized by inertness to most of the chemicals, due to which the products are resistant to aggressive media.

Thanks to the use of advanced technologies in the production of structures for wells, they retain their properties in a wide temperature range, which ranges from +50 to -70C.

During the installation of plastic rings there is no need to arrange additional waterproofing of the structure, since the products are completely non-hygroscopic.

There are several applications for plastic rings for wells. Among them are several main areas of operation:

• creation of drainage systems and collectors; for such structures, products with smooth walls are purchased, due to which the accumulation and sedimentation of sludge and contaminants on the ground is avoided;

• specialized overflow systems, due to which it is possible to reduce the level of fluid flow;
• inspection wells, whose main task is to monitor the health of the system;
• polymer products are used to create sewer wells;
• rings are used for the arrangement of domestic sewage systems in industrial enterprises;
• in addition to creating a new design, repairs of existing wells are carried out with the help of plastic rings;
• most often similar products are used for arranging drinking wells.

The last kind of wells can be constructed with the help of several types of construction of plastic rings. These include prefabricated systems, welded products and seamless designs.

Installation of prefabricated wells occurs directly at the location of the future well, such products differ in small mass. To perform such work there is no need to attract a specialized team of workers and the use of special equipment.

The prefabricated system is assembled with the help of grooves ensuring the fixation of elements with each other. It does not need any additional means for handling joints. The cost of such products is small, which explains the popularity of this model. In order to avoid clogging, a deaf or trellised cover will additionally be needed for such a construction.

Welded plastic rings differ from the first type of system in more complex installation. Such drinking wells are equipped with special tools and appliances, in addition, the help of experienced craftsmen will be needed. Welded rings are also affordable, but installation work can be quite expensive. Welding of the system elements occurs in stages directly inside the well, which ensures a high level of tightness of the system.

Seamless plastic wells are a ready-to-install structure, which is immersed in a source unchanged. Among all the above products, such a design will be the most airtight and durable, but it will cost more. In addition to the higher cost, the system can be difficult to load into the well.

However, concrete structures are also subject to destruction as a result of a fall.

Before proceeding to the installation of wells from PVC rings, it is necessary to perform hydrogeological monitoring, which will help determine the depth of the water, as well as the type of soil that is present in the area.

Installation of rings can be done in two ways:

• open;
• closed.

In the first case, a mine is preliminarily created, the diameter of which must be larger than the analogous parameter of the plastic product. The bottom of the well is filled with rubble, which will provide water filtration, after which you can start the descent of the rings.

The second method involves digging a pit to a depth of about a meter, installing a plastic structure there, after which you will need to continue to choose soil from the mine. This method is effective when working with loose soil, when there is a risk that the soil, during the excavation of the mine immediately to its full depth, will crumble.

It should be noted that the plastic used for the manufacture of rings for wells, is different. The choice in favor of a particular raw material is based on the field of operation of the future structure based on environmental factors that will affect it, and personal preferences of the owners of the wells.

The material may be as follows:

• polyethylene - raw materials are stable and durable in cases where the water at the source freezes through;
• polypropylene - the material is not deformed by external and internal pressure, it is easy to weld, therefore the constructions from this type of plastic are distinguished by a high level of tightness;
• polymer mixtures - are strong substances, which contain a special type of polymers, which together with the sand form a homogeneous mixture used for the manufacture of well rings;
• polyvinyl chloride - products from such raw materials are resistant to ultraviolet radiation and exposure to aggressive chemical compounds.

A distinctive feature of polyethylene is the ability to restore the original shape after deformation. Composite polymer strength is not inferior to concrete, but has less weight. PVC structures often prefer to use for the construction of septic tanks sewage.

According to experts, it is better to use polyethylene to carry out the repair of wells.

The minor drawbacks of plastic products include the complexity of mounting products in moving soils,that is easy to solve with the observance of the rules for the installation and proper formation of the mine well.

Concrete rings for wells are notable for their advantages and disadvantages. They have a lower cost compared to plastic products, but the laboriousness of installation and heavy weight significantly reduce the popularity of such rings.

Unlike concrete and reinforced concrete structures, plastic rings have some positive features.

• Low weight is the main difference and advantage of the products, which affects the ease of installation with their own hands. This is true for the construction of private wells. In addition, to transport products to their destination, there is no need to order special transport.

• Plasticity of polymers is the following difference, which is inherent in products. On concrete grounds, freezing and melting of ice is extremely negative. Plastic wells are insensitive to changes in temperature and the state of the fluid inside it. In addition, plastic does not collapse under the action of vibration, which is important for wells located near highways.
• Plastic can be bent, cut, grind, carrying out such manipulations with concrete is not possible. Due to these features, plastic wells can be easily adjusted to the individual sizes and diameter of each well.
• The high level of tightness of products is ensured due to the specifics of the threaded connection of parts.

• Concrete products are made of standard dimensions, and plastic products can have various sizes, the average height of PVC products is 1500 mm, concrete - 900 mm.
• On contact with water, no scurf or moss forms on the base.
• Products are fully environmentally friendly.

Structural elements of plastic differ in their dimensions. Such a separation is necessary for proper selection of structures based on the daily productivity of wells, that is, the water supply rate in the system.

Ring sizes vary within the following boundaries:

• internal diameter - from 600 mm to 900 mm;
• external diameter - from 650 mm to 950 mm;
• the height of the products can be the following - 500 mm, 1000 mm, 1500 mm, 2000 mm, 3000 mm.

• In order not to be mistaken in the calculations of the cost of arranging wells from plastic rings, it is necessary to sum up all the possible costs that arise from carrying out such work,considering the specifics of the installation of each model of polymer construction.
• Plastic well prefabricated pits are allowed to be installed in hard-to-reach places and can be installed by yourself. Some experts recommend further sealing the joints of such products with sealants. The decision on the use of sealants is made individually in each case. However, the acquisition of trains will be associated with another item of expenditure associated with the device well.
• Spiral-wound plastic rings are very convenient and easy to install primarily due to their height. The elements have a small weight, due to which it is possible to install them by hand. Performing self-assembly will save on the arrangement of the well.

• Solid polymer structures offer a high level of strength as well as airtightness. But the installation and delivery of products need a special technique.
• When carrying out repair work of concrete, brick or wooden wells it is worth resorting to use of plastic rings. To do this, you must purchase products made of polypropylene or polyethylene with a smaller diameter,and perform a series of measures for the rehabilitation and well deepening.

Works should be carried out according to the following scheme:

• pumping water from the well;
• bottom filter lift;
• if necessary, work is carried out to increase the depth of the mine;
• plastic construction is immersed in the well;
• all the free space between the walls of the mine and the rings is filled with sand and rubble, after which the bottom of the well is covered with the same materials that will act as a filter.

Review of plastic rings for the well, see the following video.