Comparison Bestway 561KA vs Bestway 5619Q

The filter is one of the most important types of equipment for swimming pools, including frame ones. It is responsible for purifying water from dust, small debris and other contaminants. Considering that modern frame pools are quite spacious, running water through a filter is easier, more convenient and cheaper than changing the entire pool every time it gets dirty. Filters can be like this:

- Sandy. A device with a filter element in the form of a container that holds fine sand of a special composition. When water passes through, sand retains mechanical impurities, including quite small ones. One of the main advantages of sand filters is their high flow Rate; they cope better with large volumes of water than another popular type - cartridge systems (see below). In addition, filters of this type are reusable - if the sand becomes dirty, you do not need to change anything, just organize a backwash. Among the disadvantages of this variety, one can note the relatively low filtration efficiency (including the inability to cope with chemical impurities), as well as the large size. However, in many cases the latter is not a disadvantage - the size of the filter is still small compared to the dimensions of the tank itself, and such a device is located outside the pool, and you can choose the installation location so that the filter does not create any inconvenience.

- Cartridge.... In accordance with the name, such filters use special cartridges with filter elements in the form of membranes made of polymer material. Cartridges are made disposable; when dirty and worn out, such an element must be replaced. This is associated with additional costs, but consumables are inexpensive, and initially cartridge filters are cheaper than sand filters. Another advantage is their relatively compact size. The operating speed of cartridges is lower than that of sand systems, but such a filter can still be made quite productive even for a fairly large volume of water. Thanks to all this, most modern frame pools are equipped with cartridge devices.

The pump is also characterized by flow Rate. It refers to the amount of water that the unit can pump in an hour. Knowing this quantity and the volume of the pool, you can estimate how long it will take to filter it.

Note that manufacturers usually choose the flow Rate of a complete filter based on the optimal compromise between good speed and low cost, as well as the weight of the unit itself. Therefore, in practice, this parameter may be required mainly in the case of searching for a replacement for the standard filter.

— Canopy. The presence of a canopy in the design of the pool. The main function of such a "roof" is to cover the people inside from the sun's rays. In addition, with the proper dimensions, the canopy can play the role of protection from the rain. Usually, canopies in modern frame pools are made removable.

— Staircase. Frame pools with sides from a height of 1 metre, usually, are equipped with special ladders. In the absence of the latter, getting in and out of the pool is quite inconvenient, and in some cases even traumatic. The user can always purchase the required ladder separately, but here it is worth paying attention to the fact that the ladders included with the pool are ideally adjusted to the height of the sides, which makes it more convenient and safe to use.

— Awning. The presence of an awning in the scope of delivery of the pool. An awning in this case means a “cover” made of fabric or other soft material, which can be used to cover the pool during non-working hours. Thanks to such a “lid”, leaves, insects, dust and other contaminants do not get into the water. Third-party devices can also be used to protect against debris, however, a complete awning, usually, is much more convenient: it optimally matches the dimensions of the pool, moreover, it is often equipped with devices for secure fastening.

— Bedding.... The presence of bedding in the scope of delivery of the pool. The main function of such a product is additional protection of the bottom from punctures: the litter covers small pebbles, twigs and other similar objects, due to which the probability of an “accident” is, if not eliminated, then at least significantly reduced. In addition, the pads are usually larger than the tank itself, go beyond its edges and can be used as an impromptu “rug” for swimming: for example, it is more convenient to take off your shoes before climbing into the pool and put on your shoes again on the pad, and not on the bare earth.

The main material used in the construction of the pool. Usually, the material of the walls is indicated in this paragraph. They are usually made of various polymeric materials — for example, PVC or vinyl.

The quality, reliability and durability of the pool directly depends on the material of the walls. However, it should be borne in mind here that the same material can be presented on the market in several varieties. In addition, various additional tricks can be used in the design — for example, multilayer walls. Therefore, it is worth evaluating the quality of the pool not so much by the claimed material, but by the general price category of the product (compared to models of a similar volume and functionality).

Pool wall thickness.

This parameter is specified exclusively for products of the so-called sheet (sectional) design. The basis of such a pool consists of sheets of metal or plastic, which are interconnected into a single structure; inside this structure, a sheath of PVC film is stretched. Such a design is noticeably more expensive than a rod one (a shell on a frame in the form of a set of separate racks and crossbars), but its strength and reliability are much higher; we note that all-weather instilled pools (see above) are usually made exactly sheet.

Actually, the wall thickness is the thickness of the metal or plastic sheets that form the basis of such a product. In modern products, it usually ranges from 0.35 to 0.8 mm. In general, the greater the thickness, the stronger and more reliable the walls; however, when choosing, it is worth considering not only this parameter, but also the material from which the frame sheets are made: metal is generally stronger, and it requires less thickness than plastic.

The thickness of the film used as the inner shell of the pool.

This parameter is specified exclusively for products of the so-called sheet (sectional) structure. The basis of such a pool consists of sheets of metal or plastic, which are interconnected into a single structure; inside this structure, a sheath of PVC film is stretched. Such a design is noticeably more expensive than a rod one (a shell on a frame in the form of a set of separate racks and crossbars), but its strength and reliability are much higher; we note that all-weather instilled pools (see above) are usually made sheet for the most part.

As for the film thickness, it can be from 0.2 to 0.6 mm. Thicker shells, naturally, are more expensive, but their strength is higher.